Surely as capitalism has developed artists have become increasingly exploited. When I look at pop music what I see is mass production and it is consumed by a world society that can no long exist without structuring the cultural differences. If you want to control your society then control its' artists by way of a system. No nation on the planet can develop its' art without erasing those differences. Music has become a commodity whose circulation benefits each nation's system of wage slaves.
Music generates profits.
Music creates the illusion that this is the only way a culture can be maintained. Power over artistic representation is power over the mass. The limits forced by the censors actually shape the culture's idea of what is possible, what is good, and what is bad. Each nation's system of artistic representation is gatekeeping. For example, Edgard Varese stopped composing around 1940 because nobody would play his music.