Humans want to solve problems, create, and innovate, they do not need money to motivate them. Cavemen were painting art 20,000 years ago without the desire of money.
True scientists like Tesla, he didn't care about money it was about the pursuit of science.
Capitalism does not cause innovation, most new technology is found by government programs like nasa (internet, smartphones, etc)
Maybe what you say is true and has reason for sufficient reason. But in my opinion even though humans are not motivated by money, humans still need money to continue their lives. It is true that he is devoted to science, but does he not need clothes? food? drink? etc. so in my opinion money is the basic thing that humans must have.