Until you are the one inventing something, going through all the trouble to bring it to market just to see someone copy it and take all your profits because they can sell it cheaper because they don't have to cover all the R&D costs... Nice...
Yes because you just stole what took other years to implement. That's what copyright is about. When you work years putting a book together, go through the pain of publishing it and then a group comes out, copies it and distributes it almost for free, you going to be happy with that?