That line of thinking goes both way. A game designer might need a supporting graphic library, but graphic itself is no the main function of the game. The developer just want to wrap the functionality of the library, yet the license of the game is now dictated by the graphic library. Releasing the whole work under a open license would be piracy.
Same problem exist with complete overhaul mods to game. Counter strike simply wrapped around half-life. Half-life was not the main function of CS, yet if they had been giving out CS with half-life under a open license it would again be piracy.
Thus it is hard to see a world where copyright would allow someone to ignore the license as long the "library" is not the main functionality. It would be a nice world, a world with remixing and a explosion of creativity, but a very different world from one that we got now.
Same problem exist with complete overhaul mods to game. Counter strike simply wrapped around half-life. Half-life was not the main function of CS, yet if they had been giving out CS with half-life under a open license it would again be piracy.
Thus it is hard to see a world where copyright would allow someone to ignore the license as long the "library" is not the main functionality. It would be a nice world, a world with remixing and a explosion of creativity, but a very different world from one that we got now.