It might actually be the opposite. The lack of gatekeepers is what drives wack music.
When indie labels in the south started to blow up without gatekeepers, when the internet made it easier for people to find bad music, start blogs, when data started showing that people enjoy bad music etc. that’s when it all started to fall apart.
Def Jam, Rawkus, Source, whoever. Cara Lewis and all those people from back in the days did not destroy hiphop. People having free choice is what destroyed it. There for the audience is the only ones you can blame. People were literally called c00ns, racists, uncle toms and whatnot for not wanting to have gangster or misogynistic rap in certain venues, schools, tv, radio etc.
It’s sounds wild defending them, given other dirty tricks they applied, but pushing back music is not on them