4. Warren Buffet:
He is an American business tycoon, investor and philanthropist. He is the chairman, CEO and the major shareholder of Berkshire Hathaway. He is said to be one of the most successful investors in the world. He is referred to as the Sage of Omaha or Oracle of Omaha for his personal frugality despite his immense wealth. He gives away 99 per cent of his assets to philanthropic causes, chiefly via Gates Foundation. He was named as one of the world’s most influential people in 2012 by Time. Warren Buffet net worth currently stands at US$73 billion.