I'm not sure this counts, but I'll post it because to me, it seems relevant.
Way back in the day, I used to play games for the entertainment value. I didn't care what the game was. I just needed the goals and then to figure out how to accomplish those goals. Most games were fairly straightforward about those things. It wasn't until I was I think 12 or 13 that I discovered RPGs. Oh, I had played a few RPGs before. I played Dragon Quest and Final Fantasy 1 on the NES way back in the day before I was even 10. Oh no, when I was older and wiser, I discovered Super Nintendo RPGs. Naturally, these required a metric crapload of reading. Naturally, that wasn't that fun to me at that age. Oh, I read books at that age (I remember reading The Lost World: Jurassic Park and being amazed they'd let me read something with so many curse words in it at that age), but most of them were about dinosaurs or aliens and stuff. I had only ever read a few novels at that point. At the time, I was also reading at a level above where I was meant to (in Kindergarten... which is ages 5 to 6 for those not in the States, I was reading words like "important" and knowing their full meaning and context). I was good at reading and I liked reading certain books... But, I didn't really understand them. They were just something to do when video games made me bored and I didn't have friends to hang out with.
So, imagine my surprise when my friend (whom is not really much of a friend these days and is more a hyper competitive drug addled well-meaning jerkwad) invited me over to his house to watch him play Final Fantasy 6 (or 3 at the time, we didn't know there were some missing games in there). He read all the dialogue to me as he played and that got me interested enough to read the dialogue myself. He even loaned the game out to me later so that I could experience it myself. Imagine my joy when I'd almost completed the game and wanted more of these things called "RPGs" to play. I had discovered engaging storytelling and it would engross my entire life for the next 6 years. I consumed every game he loaned to me and tried to watch him play ones that I couldn't play. Final Fantasy 4 (two in the states at the time), Chrono Trigger, Secret of Evermore, Secret of Mana, Final Fantasy 9, Final Fantasy Tactics, 7th Saga, Breath of Fire, Super Mario RPG, the list was enormous. Well, until the N64 came out and no real RPGs ever dropped for that game. Or at least... none with a compelling story. So, I switched to FPS games, as the storyline of Perfect Dark had entranced me. I picked up StarCraft on the N64 and was engrossed in that as well. All the stories I could consume and there just weren't enough!
So, I got to High School. I believed the only places I could get good and engaging stories were from video games. Books were just too bland and boring. They were "okay", but they weren't that interesting or engaging. They were simply stories. I read a myriad of books in High School to pass the time because I didn't own any consoles with new games, my friend had moved a couple towns over and could no longer hang out, and the internet or books was all I had left. I didn't even have many friends left to make my own games with to tell some of my own simplistic video game stories with.
So, I read. It just so happens that because of a really stupid and crappy assignment in school known as "Accelerated Reader", I would find exactly what I was looking for. The first book I picked up in the program was "The Three Musketeers". It was so painful to try to read it that I gave up a chapter in and still didn't know what was going on. I had picked it because if we did more than the points we needed to, we could skip weeks or months of the program. It was a disaster. I decided, "you know what? All the books on this list suck. If I'm going to read something, it may as well be something moderately interesting". The book was called "Ender's Game". To this day, it remains one of the single greatest books I've ever read. You'll never guess what happened after I read it.
I began consuming books the same way I had been consuming video games. I dropped doing homework altogether. I would only complete the easiest and most basic of assignments in my classes and turn them in. Anything else, I would relegate is "pointless stupidity" and just take Zeros as grades on. I spent nearly every hour of school reading if I could get away with it. I was finishing books in 3 days or less. I had read the first 4 books of Stephen King's "The Dark Tower" in a week and a half. My grades suffered, but I didn't care. There were so many stories! I was learning so much about life and science and math and English and everything else from reading these wonderful books! I was learning psychology and sociology! I was learning deductive reasoning! I was picking up more knowledge in 3 weeks of solid book reading than I had in the 4 years of High School I had attended! It was glorious!
To my parents, it was worrying.
Imagine my surprise when I discovered the video game called "Halo" on the Xbox. My friend had come back from a few towns over to live back in my home town, but to attend school several towns over. He introduced me back into the wonderful storylines of gaming. Halo consumed my life for 3 years. I played through it so many times that I knew almost every piece of dialogue backwards and forwards. But, it also did something else to me. Halo gave me the idea, "instead of just reading all these stories... Why couldn't I just write my own?". Video games helped me make the connection between reading and writing.
So, I started writing things. Most of it was fairly simplistic stuff. You know, the kind of stuff you usually read on fanfiction boards or other places. Not written terribly well and the story would be massively confusing and convoluted. But, I kept playing video games. Except now, I was playing them with a different intent. I wasn't just playing them to enjoy a story. Oh no, I was playing them to dissect a story. How do you tell a story? How do you create compelling characters? How do you create and gauge pacing? The more games I played, the more of these blanks I was able to fill in. When I could glean no more from video game storylines, I delved back into books. How do I make details? How is dialogue constructed? How do you make subtle things in your storyline? How do you add side plots and call backs? How do you make an ending that isn't just "happily ever after"?
It was slow and hard work, but here I am today. I'm not the best at expressing myself, but I would say that video games have helped me come a long way to learn how to write. Oh, I'm still learning things along those lines, but it's much easier now. Video games sparked my interest in consuming stories. Later on, video games sparked my interest in writing my own stories. After that, video games helped me learn how to even write better.
So, for me, the answer is "yes, video games can help people". It just may not be the kind of help you're thinking of or even expecting.