William Henry Gates III is the 2nd richest man in the world. With a net worth of $53.0 billion, Bill Gates can pretty much do anything he wants. But instead of spending his pile of cash on himself Bill and his wife Melinda are the leading philanthropists on earth. With an endowment of 33.5 billion, The Bill & Melinda Gates Foundation is the largest private foundation in the world. Both Bill and Melinda get their hands dirty by taking annual trips to 3rd world countries to help those in need. Bill Gates is someone who defiantly makes a difference in our world.