There are plenty of brilliant composers, musicians and singers around, but I will agree that the music industry seems to be arrogantly useless.
The best musical advertisement that ever existed was MTV, which introduced the music buying public to hundreds of musical acts, that are still remembered today. But it was killed dead, not by the Internet, but by the music industry that could just not stand anybody making money off “their” music. Even if it was free advertising.
Their next mistake was to fight piracy, even if the music was not available for retail, sitting in their libraries. It still introduced the public to hundreds of artists, often they had not heard of before, and they wanted to buy their music.
Instead, the music industry just focuses on the top 20 singles that *they* promote, not that the public want. And usually even if the single is okay, it is sold only as an album with nothing else but filler.
When I was a teenager in the 60s, there were at least two local radio stations playing exclusively contemporary pop/rock. For a few years each station would put out a weekly top 40 list. There was tremendous variety - Beatles, Stones, Beach Boys, bubble gum, Motown, soft rock, Petula Clark, Dean Martin, Ronettes, psychedelic, novelty tunes, country cross-overs, and on and on. Now, all the radio stations seem to be oldies stations or country stations. Maybe I’m not looking hard enough, but I don’t know where current musicians are getting much air time.