Steam is arguably one of the biggest reasons why a lot of people have started buying games instead of downloading them for free. You buy the game, you own it forever, you can install it whenever you want to...and there are even decent campaigns and discounts on there. Battle.net, GOG, Origin, these do the same, although, it would, obviously, be nicer if you could have everything under the same roof.
Now, imagine if TV shows and movies were under one roof, and you could buy the movie or buy the episode of the TV show, and then own it forever, just like back in the day you would've recorded it on a VHS when it came on the TV. Imagine if you could do the same with music. Not some dumbass "access to a library" like Spotify, but actually buy the songs, buy the albums, and then own them forever. And not Apple, obviously. A Steam for TV/movies and a Steam for music.
But...hey. Disney thinks fracturing the services up more is better, and won't drive people towards warez. Good luck with that.