Sure... Many people go into medicine with the best ambitions. And many of them eveuntally have to worry about money even though it wasn't their original motive. But eventually it changes the way they treat people and what they prescribe and how they act.
Moreover, the people who don't make money at their craft these days, are almost forced into full-time labor elsewhere. Then they are only a part time artists. I'm not trying to put down people who enjoy a hobby. But, if they could pursue their passion full-time, it would change the art their create.
I think art part time artists are probably much closer to creating a pure-er art. The downfall comes with promotion, exposer, and survivability of the art.
The art that does make it out into the world, is so heavily funded. The good art is left hidden beneath a current mass produced, consumiable, repeating, easily marketed art. And history will have a hard time unearthing the gems created by geniuses that weren't business savy.