There are no easy answers on this. Yes there are loop holes in the logic. it's all a matter of good proportion.
The way I see it music is something best experienced 'live' anyway. If you go to a concert the performance, the event, are unique and unrepeatable. People will pay a lot for that and rightly so. Trailing behind by a mile and second best is a good quality CD, aphysical item to hold in your hand.I'd give that to someone to motivate them to come hear the music live, and charge them a small nominal fee (or they can give a donation towards it).
(An exception to this I suppose are those pieces of music that can't be played live. So the CD of such a performance is the testament, like a book that is unique and is sold as such. )
But the skills of the artist, the composer, the performer will always be in demand because music is a very sophisticated art. So of course he can make a living, performing, commission fro composing, teaching etc.
Whose idea was it anyway that artists and sports personalities should become millionaires??? In which culture other than the European and American ones from the 19th century onwards did musicians get paid the extravagant amounts of money we see today, and have a status higher than a King? And wasn't that the demise of the quality of music to the point that today most of the music played is both unskillful and unmusical?
How much did Bach or Beethoven get paid?
What you've got are art dealers, record producers and those middlemen generally who create reality shows, trying to become rich by marketing an artist as a product, and who generally rip artists off anyway.
I hear today the advertising companies will break up composers' works into tiny little fragments, create a library of genres, and then use those butchered jingles as background advert music on TV.... the death of art is when you rob it of its integrity.
Love of money is the culprit and its the enemy of art, not its friend.
You see even if you paid an artist nothing, he would still go on creating! It's a compulsion some people have, we probably all had it when we were kids and would draw or improvise on an instrument for hours and for the hell of it. You can't stop that by saying "I'll stop paying you!"
I generally give my stuff away. I tell people "you can use it as long as you mention my name and you don't edit, add or take away anything from the music/performance".
Integrity is sacrosanct.