It doesn't, because nobody knows what works have commercial value 70+ years into the future and thus current business is not conducted on that basis. That's how many popular works end up in random hands in the first place, like in the case of Ravel - they aren't seen as particularly valuable at the time, but become sleeper hits when they earn a special nostalgia or new technologies emerge (television, internet, etc).

Good luck selling a movie to Warner Bros on the premise that it'll be a real money-maker in 2090s on telekinesis-vision platform.