The rich are usually white people who were allowed to break the law and make money at others' expense. Back in the day when liqour was illegal, the whiteys were allowed to tacitly break the law and "bootleg" it. This is how the Keneedy family built its fortune. Today, when a black man "bootlegs" cocaine, he is labeled as a drug dealer who preys on little kids and thrown in jail for 20 years.

So basically the rich are those white people who were allowed to break the law the longest.