However this isn't as much the case with movies/TV. Streaming in that realm is fractured, expensive, and most of the offerings are poor. With music you subscribe to service X and get access to 90% or more of what you'd want. With movies or TV, you have to subscribe to a handful of services all at once just to get access to maybe half of the content you'd want to watch. $10/mo for music, okay. Netflix+Hulu+HBO+Amazon+etc; adds up fast.
Outside of Netflix, every other provider has some combination of terrible app/UI, streaming problems, or ads.
Even if you look past all that, how do you play all these subscriptions? The device landscape fragments everything further. And god help you if you want global search on all your subscriptions, or want access to an Apple library.
Contrasted with pirating + Plex? Yeah...
And the problem is only getting worse as all the big players in market continue to wage war. See, for example, Disney pulling out and forming their own subscription.
Don't get me wrong. I think the world is better today than it was when all we had was cable. All of these content companies getting direct access to subscription money is incentivizing productions that could never have existed under the older ad-driven models. But in terms of overcoming piracy? They are leagues away.