Yep that is exactly it. 
There is always black sheep in large groups that end up wanting to take control over the mindless followers, and that is the real problem.
Heck, there is always people that intentionally join those groups to screw them over, or large companies pretending to be āInclusiveā and Stuff by changing their Logo to be all rainbows during June, despite actively bullying LGBTQ+ members of their workforceā¦
I personally know a german Rightwing Politician (he happens to be a Bus Driver, otherwise I would stay away from those people), that literally got bullied out of the Party for not being extreme enoughā¦
Where there is a large enough Group, there is always at least one bad person trying to win over the mindless Followers, and once that happens, the good and critical thinking Followers will be bullied out of the Group or silenced to the point that the entire Group gets corrupted.
I live in Bavaria, which is a place in Germany, where a lot of people have been āshat into the brainā by a political Party called the āChristian Social Unionā, which resulted in a LOT of discrimination against Migrants, LGBTQ+ and Poor people. You can probably understand why I hate Religion, Politics and āCultureā so muchā¦
Yeah, I need some way to make a large variety of NPCs that differ depending on the Region they live in and the local Culture. That said I might not end up painting the most favorable image of those concepts. Especially if I want some NPC Groups to be at war with each other. (this is a game after all, and it would be boring if we had World Peace there XD)