I always hear the argument for capitalism "B bb BUT people won't innovate without the profit motive" WRONG
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)
But most of the people only work for money. Money is an essential thing for some people to live so that they want that more than anything in this world.
Money is all we need to continue our living, all are needs in life is in exchange of money, we cannot live if we don't have money. So people are motivated to make money for their daily living.