Entrepreneur Itthipat dropped out of school to start a small business selling roasted chestnuts. But he really hit the big time after 2004, when he launched Tao Kae Noi, selling the fried seaweed snacks of the same name that have become a huge hit around Asia. The company successfully floated in 2015, while his life was the basis for popular 2011 Thai film, The Billionaire.