A writer has to write a book I want to buy if he expects to make money of it. A cook has to make the kind of food I want to eat.
Why shouldn't an artist?
Why shouldn't an artist?
But in almost all cases, it wasn't just the artists who considered their works valuable: many other people did as well. That's generally why they were able to continue to produce art. Patrons, who did appreciate their work, even if the general public didn't, bought it, and supported the artists.