Amagi- You raise questions that only you can answer.
Cogitate about the following theory though- I call it: "Van Gogh's Sister-In-Law".
Van Gogh sold- depending on how you define the word "sold"- none; one; four; or five paintings. He never collected any money on any of them.
Van Gogh died. Shortly thereafter, his brother- and his biggest supporter- Theo died.
The only thing that Theo's widow had in great abundance, was Van Gogh originals. She lugged them to Art shows, all over Europe- and I suppose she seized every opporotunity to show them to lone indiviuals as well.
After fifteen or twenty years of this, Van Gogh started to sell. The old woman was a multi-millionaire- and still owned over half the world's Van Goghs when she died.
Now reason would suggest that there have been many Artists of equal or greater merit than Van Gogh, over the centuries. They toiled in obscurity; and today, no slightest trace of their work survives- simply because these unsung geniuses had no sister-in-law to hawk their wares after they were gone.
Many conclusions could be drawn from the Sister-In-Law rule.
This is one I like:
Concerns with Right and Wrong; Good or Eviil; or Sucess or Failure; are all the delusions of a sick mind. The wise man acts purely for the sake of action; with absolutely no regard for comsequences.
If your Art is not worth doing for it's own sake- well, that's the only reward you are ever assured of...