I think even people who don't care about how broken the copyright system is understand intuitively that huge commercial properties that are contemporaneous with themselves are protected. They don't need to know any details to know that these properties belong to massive companies and aren't free for the taking.

How many people think they can rip off Disney characters even if they don't know how much Disney lobbied to extend their ownership? People can observe that no one but Disney gets to use them and understand, even if not consciously, that those are Disney's to use.

^ Probably poorly written without time to proof cause time constraint.