Right, his example really questions almost philosophically what you can consider self-made. I mean imagine if he's born in West Baltimore to poor working class parents. Does he become Bill Gates? I would say no, I don't even think he stands out much from the crowd because his intelligence isn't fostered in a good education environment. 

Sure there are people who are very intelligent and stand out from those backgrounds but they are the exception of the exceptional. I believe there are many people who have the qualities to become a Bill Gates figure who don't have the proper channels he had.