Mukesh Ambani vs. Larry Page

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.

Page has avoided public appearances since Sundar Pichai became Google's CEO, including Alphabet's 2019 shareholders meeting -- much to investors' chagrin. Page is a clean energy advocate; his Palo Alto home uses fuel cells and geothermal energy.