19. Jeff Bezos, Founder of Amazon, married to – Mackenzie Bezos
Jeff Bezos has a fortune of about $40 billion while Mackenzie Bezos is an author and social activist. The couple has been involved in promoting equal rights for same-sex couples by donating about $2.5 million.
20. Michael Dell, Founder and CEO of Dell Computers married to – Susan Lieberman Dell
With an estimated worth of $18.6 billion, Michael and Susan Dell have been married for 27 years and have four children. The couple set up Michael & Susan Dell Foundation to support education and health care to underprivileged children all over the world. They have arranged for more than $650 million donations by now.