Parasites hopping onto a culture to exploit it for their own gains is not really the same as state propaganda. I don’t think there’s some shadowy group inventing this music to control the masses. Though politicians would no doubt pander to (or even weaponize) a group if they can. And people will absolutely try and profit off it.
It’s just a bit of a leap to ascribe low brow music to some grand conspiracy. Or at least if that is, then every culture is a conspiracy.