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)
Money is not a motivation by the most. People don't see money as a motivation. What motivates them is the passion they have for something. The result of what they do or the positive outcome is also what they are motivated. Just like in bitcoin, I believe some of here makes the learning as the motivation for engaging in here. However, we cannot hide the fact that some of us are being motivated by money.