Well I'm speaking from experience and this in no way will apply across all schools or groups. As such I know of some great organizations which have great missions and members and do great work. That said at this particular university which was largely greek, the largest fraternities and sororities were the largest offenders of indoctrinated and systemic racism which had subsequently seeped into the school culture and administration as a whole. That school has had numerous national scandals as a direct result. The scandals are just the instances that get reported and they're just the tip of the iceberg. Daily life for the kids I knew was fraught with fear and apprehension. It's also one of the reasons why I think when we were doing our parties we had so many foreign kids come out and respond the way they did.