I would say that, for all intents and purposes, "Perverted" is just a subtype of "Crass." Most adults (barring your intermittent ace) have sexual thoughts. Calling attention to it in any situation except active flirting is
rude, and the way those incidents are inevitably portrayed in anime and manga are so far outside the pale that they're considered
crass.
The reason 'perverted' behavior is considered unacceptable is because it treats targets like objects instead of like people. A 'perverted' character acts to others in a way that says, "I think the world is my plaything."
In anime, it often goes along with jokester tropes, but in real life, that kind of behavior typically seems threatening rather than funny. Considering a lot of the community seems to be gals, who often have first-hand experience dealing with that kind of creep I would... not advise putting that in your game.
I would say your scales would make more sense like so:
- Jokester vs. Serious
- Crass vs. POLITE, where sexual stuff is shelved as crass
- Rude vs. Kind/Gentle
- Brave vs. Cowardly
- Pragmatic vs Honorable <- you mention this dichotomy, but didn't put it in your list?
I would merge it with crass vs. polite because it makes for a more memorable story when you phrase it that way
Note that I also switched brave and cowardly - this lines the traits up by the way they break social boundaries, instead of arbitrary goodness or badness.
Keep in mind that, especially for comedic purposes, characters acting too serious, too polite, too gentle, or too brave can also make situations spiral out of control.
Likewise, offering statements that boost crosswise - for example, something both Polite and Jokester (bad puns, anyone?), Rude and Serious (for example, breaking up a heartfelt, important emotional conversation to try to steer people back to a task that, while perhaps important, could definitely have waited a few minutes), or crass and kind (for example, after a wardrobe malfunction, clapping someone on the shoulder and saying "Nobody minded, your ___ looks good") makes for an interesting spin.
I would say most of these traits should mostly be affecting which NPCs are willing or unwilling to help you out.
Is your game linear or full of side activities?