It’s not about challenges in finding success, so much as, at least in music, artists don’t want to follow a formula. They want to create songs and melodies that are personal and meaningful to them and their fans.
Inorganicly chosen winners is a problem, but in the music industry, the end product itself doesn't exploit the listener beyond just that.
Games are ultimately tech. And games grew along with the internet. It was inherently going to be run more like a tech company than a media conglomerate for that reason. I see it less as games being exploitative than a double edged sword, like the internet itself. It can be a lot more exploitative. But it also opened up entire mediums of ideas and arguably tore down world borders.
They know this, too. They budget so that their 1% massive hits pay for the 99% that nobody cares about.