It says a lot about where somebody has come from that they would choose to join a gang.
I can't imagine why anybody would choose to live in a totalitarian society, where the head of your organisation governs what you do, where you live, who you can associate with, and who will not let you leave the organisation unless they grant their permission.
To live a life where you have limited free will and which is marked by fear and violence doesn't strike me as any sort of life at all.
But then a lot of gang members come from backgrounds we can't even begin to imagine. And I suppose if your prospects are limited to menial, low-paying jobs, joining a gang might have some advantages. Some men might prefer seeing fear or wariness in the eyes of their fellow citizens rather than contempt or superiority.
However, I find it extraordinary that these gang members, who say they choose to live outside of society and who appear to have nothing but scorn for society's rules, are so quick to make the most of the establishment's structures when it suits them.