Mukesh Ambani vs. Michael Dell

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.

Dell got his start at 19 selling computers out of his University of Texas dorm room, grossing $80,000 by the end of his freshman year. Dell's MSD Capital owns the Four Seasons Maui, plus indirect stakes in Applebees, IHOP, Calvin Klein and reportedly Grand Central Station.