JK Rowling never has to work again in her life because she wrote a couple of books that were exceedingly popular. Because she doesn't have to work, she's not been forced to come up with new stuff. How is that not stifling?
She's an awful person for other reasons, but that's beside the point here.
Reality is most trad-pub authors have full-time jobs anyway to pay the bills. If you're not one of a handful of publishing superstars, trad-pub pays incredibly badly as a result of corporate consolidation and monopoly dominance.
To be clear - there are far more people living parasitically off investments, producing nothing at all and extracting value from everyone else, than there are talented creators living the high life.
What do you want?
She's not allowed to make money selling books?
But why shouldn't everyone get to live like that? we have the technology to feed all the people, it's just a distribution and organization problem. "just". Money, and capitalism is how we've organized things and it's worked great for a lot of people but it's also left a lot of people behind.
We keep making adjustments to the system but we don't have to be trapped in the system. we can take a step back and look at things and say, hang on a minute, if the goal in life is to feed and clothe everybody, we've either succeeded beyond our wildest dreams, or utterly failed.
Because we don't have that much money?
In my opinion, if someone creates something that has value for a lot of people, they should get rewarded for it.