Hughes, 34, now devotes his time to evangelizing for higher taxes on the rich, such as himself. He's proposing that the government give a guaranteed income of $500 a month to every working American earning less than $50,000 a year, at a total cost of $290 billion a year. This is a staggering number, but Hughes points out that it equals half the U.S. defense budget and would combat the inequality that he argues is destabilizing the nation. -Bloomberg

Hughes, who has a related book coming out, has made tackling income inequality his top priority by partnering with the Economic Security Project - a major recipient of his philanthropic efforts. The group is focused finding solutions to provide "unconditional cash and basic income" in the United States due to the effects of "automation, globalization, and financialization" forcing the discussion.