I happen to know some successful artists (you'd recognize their names), and they are very much in it for the big bucks.
You will find many who say they are in it for the purity, but their actions belie it.
BTW, your ideal society has a name, it's called a "commune". Communes have been tried over and over in history. Something like 10,000 have been set up in the US. The result? 100% failure.
One hundred percent.
You don't have to believe me. It's perfectly legal to set up a commune in the US. Set one up with your like-minded friends. Throw your hat in the ring. Prove me wrong.
AFAIK, 0% of them have produced any art anyone considered great.