The richest people in America all started out with nothing, just regular Americans in college or business who clawed to the top by being good and having the opportunity to do so. That's America, where with an idea, ingenuity and follow through, you can do anything.
Take a look at the ten richest people in America.
http://time.com/money/5095574/the-10-richest-people-in-america/ 1-8 are all self made, most of which in the last two decades. Bezos (Amazon), Gates (MS), Buffet (BH), Zuckerburg (Facebook), Page (Google), Ellison (Oracle), Brin (Google) Half are college dropouts and others like Bezos started their business in their garage who took their idea, worked their ass off, and are now richer than they could have ever imagined. They are also massive philanthropists who give away billions upon billions of their fortunes to major causes that benefit millions upon millions of people, or are funding major medical research to cure our worst diseases. Even if they kept every single cent, it's their business, not ours.
Only in America can that happen, the rest of the world can have their thievery and deceit in the name of "fairness". Wealth redistribution is theft, and wealth jealousy is pettiness.