Morally I find the idea copyright flat wrong on the basis that it restricts human expression and culture. Pragmatically I can see a use for it. We're better off with it, even if it (and the class of "workers" who benefit repeatedly from only doing work once) is morally repugnant.
The social contract around copyright, as it sits now, has been "negotiated" significantly in favor of the owners of copyrights to the detriment of the good of society (terms that are too long, works becoming orphaned because mandatory registration was eliminated, infringement without profit motive treated the same as "piracy"). I'd like to see it brought back to a more fair arrangement.