Mukesh Ambani vs. Elon Musk

During the Covid-19 lockdown, Ambani raised more than $20 billion selling a third of Jio to a string of investors, such as Facebook and Google. Reliance owns Network18, a licensee of Forbes Media. Ambani's U.S. educated daughter Isha's marriage to fellow billionaire Ajay Piramal's son in December 2018 drew 10,000 guests, including Hillary Clinton. Reliance Industries bought the Mandarin Oriental hotel in New York for $98 million.

Musk, who says he's worried about population collapse, has nine children with three women, including triplets and two sets of twins. As a kid in South Africa, Musk taught himself to code; he sold his first game, Blastar, for about $500.