If the company does not share its profits in any way with the shareholders, then I agree that it's not different from crypto. The thing is that usually there's

If the company does not share its profits in any way with the shareholders, then I agree that it's not different from crypto. The thing is that usually there's an expectation that you will start paying out to your shareholders eventually. There are also companies that already pay out dividends - you can always invest only in those to dodge the "greater fool" problem, at least partially.