Nobody is going to make money on museums. As such, you either provide for them through tax dollars or you convince people to donate.
If you believe that you are better at picking winners (slop startups vs non-slop startups) than the rest of the investment world, then that's a valuable skill that you could use to earn a lot of money that you could then use to support museums if you choose.
This seems to have been said as if it is a bad thing. Is it, or did I misread what you meant?
Deduct extra points if you ever accepted stock options, ever tried to start a startup or did a side hustle because you wanted MORE than the bare minimum you need to survive. (Like those capitalist pigs do!)
Or if you are typing this from a mobile phone or laptop computer that costs an amount of money that would be unimaginable to the typical person for most of human history.
Otherwise you're golden. Socialism truly is the superior moral position. It's so obvious we can all agree. And you should lead by example by giving away everything that you might need less than some other random poor person out there.
Betting on business in general over long time periods tends to be a winning proposition. Betting on an individual company tends to be less of a winner in general.
But you cannot grow a small company into a large one by concentrating on short term profits. The S&P 500 is composed of 500 large companies.
Imagine if you were selling MSFT short every quarter since they IPO'd in the '80s.
Long live the overlords.