Bill Gates
Net Worth - $76.8 Billion
Bill Gates has built a reputation as a serious thinker about the world's problems and has steered the Bill & Melinda Gates Foundation to tackle knotty issues like improving health care and the use of vaccines in developing countries. In December 2015, at the United Nations climate talks in Paris, Gates raised his profile on the global stage when he announced the formation of the Breakthrough Energy Coalition, a group of more than 20 billionaires who have agreed to invest in innovative clean energy
