There is absolutely, completely no way in hell the music and video industries would have their current sizes and audiences without piracy. Netflix and Spotify wouldn't have been made if it wasn't for piracy to begin with. What kind of insane madman would ever license material to these companies in a world with no piracy whatsoever? What kind of audience is there in the first place?
I don't, for a single one goddamned second, believe that the vast majority of musicians and film makers haven't resorted to pirated material, the cost to actually have a decent collection otherwise is preposterous, the cultural benefit of piracy is ginormous, it can hardly be put into words.