Rigged isn't a fair word, it's just reality.
Also, as another commenter pointed out, there are people that are successful in a wide range of ways, money is just one of them. And those that had it easy early on often times don't do well later in life when things can get hard.
Edit: I spent time on the streets as a teen (yes it affected me) but my siblings did not, but they are worse off then me. I hit bottom and bounced back, they are still struggling in many ways. (not just money)