The artists are the ones that let the labels make all the sales/straming money. Take 10 decent artists, the label says "ok we like all of you, whoever will sign

The artists are the ones that let the labels make all the sales/straming money. Take 10 decent artists, the label says "ok we like all of you, whoever will sign for the lowest % of music sales/streaming will get signed and promoted and has a good chance to get famous and make that much more from concerts, etc.". Of course they end up making all the sales/streaming money. That's not evil that's just how it works.