World's richest person and Amazon CEO Jeff Bezos added $30 billion to his wealth in less than three months despite the massive sell-offs in global markets. Bezos' net worth stands at $129 billion, according to Bloomberg. While Facebook CEO Mark Zuckerberg lost $7.52 billion this year amid the ongoing data scandal, Zara founder Amancio Ortega lost $7.56 billion in 2018.