8/21`Tue. “Maybe I’m Amazed” 2014 Sir Paul McCartney topped a list of the richest bassists in the world with estimated wealth of $1.2 billion according to the website www.therichest.com. Coming in at No.2 were Sting and Gene Simmons, both with a net worth of $300 million, followed by Pink Floyd's Roger Waters, U2's Adam Clayton and Flea from the Red Hot Chili Peppers.