There are seven Scorpio billionaires on the list as well. The world’s second richest man, Bill Gates, worth $93.9 billion (£73.6bn), is one of them. Other Scorpios include: Steve Jobs’ widow Laurene Powell Jobs, worth $18.4 billion (£14.4bn); and Chinese real estate developer Wang Jianlin, worth $31.3 billion (£24.5bn).