Privilege Corrupts

I'm continually amazed at people I've known that grew up in "privileged" households. Why do they often turn to socialist thinking? Their parents gave them EVERYTHING, and then some!

I'm not denying their prosperity, I'm just trying to understand their leftist leanings. Why?

I could name people from my childhood, but what's the point? What is it about them that they think that they should dictate to everyone else. Guilt?