I guarantee you that one day there will be something regarding famous people and some "ownership" deals. Like for example movie deals, where some famous direction or producer will come out, and say that they will do a new movie, and the movie will be shot with the budget created from the NFT sales, and they will sell each NFT for a price, and crowdsource their movie that way with one condition, whatever the movie makes as a profit, the NFT owners will get that to their address that holds the NFT. That is not impossible, and can't be forced but could be done.
If they do that, then they could gather more money for all of their movies forever, and they will only get cut from the fees from NFT sales to each other, that alone would be in millions of sure.
That already happens with music right now. Of course big names do not need stuff like these, but there are some people who need PR and they sell the royalty income of their music to people who gave the money for it. Music takes a ton of money to build and doesn't really much money, like 1 million listened songs on spotify could be as little as 1 dollar income.
It means that musicians usually do not make money based on the music that you listen to, not on spotify, and not on CD's which rarely anyone buys anyway. Where do they make their money? Firstly the tours, they make a ton of money from that, secondly merchandise, could be anything, but that does bring a good chunk for many. So musicians are smart and small timers end up selling the royalties they earn from making it, and get the rest for free.