Which part of the music industry doesn’t reward the most successful bands the most? They are, after all, the most successful.
What I think you’re trying to say is that they don’t reward the less successful bands enough and likely over reward the successful ones.
Funny I’ve known a few musicians who say they don’t care about piracy, as they don’t make much, of anything, from album sales and most of their income comes from merch and gigs. Gigs that nobody would be at if nobody knew about the band, and piracy allowed shit tonnes of new people to hear the music, become fans, and go on to see them live.