The point of money is that it enables to choose what you want to work on.
Look at Elon Musk. If he didn't have all his PayPal money he wouldn't have been able to found Tesla or SpaceX
Sure, but how many people that have money, put their money into something useful, actually?
I don't think it is about putting money in as much as it is about putting time in.
So to shift your question a little, how many people that have money put their time into something useful? I think this number is quite high. Whether it be building new ventures or doing volunteer / philanthropic work. Once you don't have to "make a living" you get to decide what is important to you and live accordingly.
I want to work and i want to learn constanly. I don't want to be rich. If i would be i don't want to life on the money by myself. I just want to life and money is by far not everything.
What the hell is wrong with the persons that brand their lifes to "getting rich is everything"? I think that is actually what anoys me most with startup culture today. Its all about success, high exits, getting rich. Make as much money as you can in a short time.
But what for? What did you really gain from that? A burnout? A million? A few millions? And then you probably end like a austrian millionare and donate all your richness, before you really retire, just to life again and don't have to worry about all that richness.