>A lot of men who go into police, security guard/bouncer, correction officer, etc work are men with anger issues, who used to be bullied when young

In my experience, it's been the ones who were the bullies who ended up becoming cops/etc as adults. The perpetual D-student meatheads who just loved shoving people around when they were kids/teens who grow up and want to be able to punch down legally.

But I'm sure examples could be found in either direction.