Once there's enough money to be made, corporations optimize the humanity out of your favorite niche.
There is no difference between rap songs recorded in a basement and ones recorded in a top tier studio, they're both commercial enterprises. Due to the scale of one it requires mainstream appeal, granted, but music snobbery, like most other forms of it, is very pretentious. "The Man" didn't come along and "ruin" rap, once the genre took off people were desperate to "sell out". Snobbery itself is a part of the business schema, the premium product, the higher grade, the luxury Swiss watch, organic free range chickens and Fiji water. Albums on second-hand cassette tapes, vinyl editions, holographic prints. The idea of an underground, more humanity, productions with soul, that's a marketing gimmick. It's just another way to sell you, the consumer, the experience. It has nothing to do with the real world.
It's like when Star Wars got sold to Disney.
Take this. George Lucas might have had a lot of passion for what he was doing, but the man is a businessman first and his later films have been described as toy commercials in some corners. They're both wrong and not, during the productions of the films he always had the commercial side in his mind, what sort of merchandise he could license out, the future of the special effects studio he was putting together, risks and possibilities. The man might have been outside the Hollywood system but to say that big business ruined Star Wars, or being a snob about it? That's mental but it's also a good comparison to those glorifying smaller music productions and the rest of it.