anyone interested in more understanding of social structures, and bullying as way to enforce social norms ... its pretty much philo 101:
https://en.wikipedia.org/wiki/Michel_Foucault
it can basically be summarized by, there are major benefits of bullying for people who are a part of the current power structure. it continues to enforce that structure that gives you power. if you are not part of the current power structure, then bullying is probably bad for you.