There is always some special brand of evil that attaches itself to every group and none are immune.
Dante is a good cure for that delusion.
That is in Dante, hell is reserved for people with bad character. That is to say when people do evil, they end up in hell and the social group they belonged to does nothing to help them out of it.
I have found this a lot in Jewish groups, but all groups seem to have this problem with unwarranted pride. That however does not mean all groups are the same. Each one seems to have its own particular variety of the evil inclination.