Admittedly, the incentive to want offline music may continue to diminish over time.
Anyway, my point is that your comment could be interpreted to mean that radio is democratic and it is a democratic way for meritorious music to be elevated.
By democratic I don't mean anything more virtuous than screaming masses, but I don't think commercial radio even rises to that.
Anyway, I have to read more to get an overview of how Spotify and others compensate the talent that makes content, or even cheat them, but I also want to make sure that popular radio isn't treated like something we'd prefer.
Yes, in the old days some companies controlled which music was heard and which not, and those gatekeepers were not as cheap as you thing.
Definitively not 0$/month.