People are surprised by greedy bankers. But they are ones who choose to work with money, what do you expect? Far more surprising is greed among creative people, among artists.
It is obviously morally wrong when you take somebody's else work as it is and call it yours, even worse if you start selling it as yours. Everybody knows that. People will turn away from an artist who does this.
But most of the rest of "copyright wars" is nonsense and greed. Art is impossible without derivative works.
This is how we are learning, this is how we preserve our heritage. As it was said by Picasso: "Good Artists Copy; Great Artists Steal". All this "just you try to mention a character from my novel and you'll be sorry", "just you try to even remotely base you drawing on my photograph...", "just you try to sing my song at home and put it on YouTube...", "just try and press this share button next to my artwork"... and so on is pure greed and stupidity.
Its also an issue of being a famous artist: I've seen them using magazine cuttings, etc in their collages freely. An ordinary artist could be accused in stealing for that. Yet the law should be the same for everyone.