That's oversimplifying things.

Copyright doesn't actually stop me from pirating a book or an mp3 right now. Heck, I'll just download a book right now. Bam. Done. Some things are so difficult to keep from being pirated, such a photographs, that saying the copyright system protects photographers strikes me as a bit silly. It does protect some commercial photographers if a magazine wants to sell their photo sometimes, but that's a very very small slice of all the photos in copyright that are being shared online right now.

Also there are other systems that might protect an author's financials. Off the top of my head I imagine you could do a netflix model where every citizen pays some taxes to consume intellectual property like a utility. Then the goverment finds a way to measure what is being consumed and gives each author a share based on the rate of consumption. In fact the "intellegence is a ultility" ramblings of Sam Altmen sort-of point in this direction. But that's just one idea thought up early in the morning when its too hot to sleep properly. I'm sure there are many others.