Does it matter? Hmm. That's a good point -- it may not.

But ZAMM and Atlas Shrugged certainly felt to me a bit dishonest in that these works are primarily delivery devices for the authors' philosophical ideas. Other authors inject philosophy and ethics into their "straight" fiction, such as the philosophical rant-free work of Tolkien (LOTR = a treatise against fascism) and Stephen King (The Stand = a treatise against organized religion), but their philosophies never smack you in the face. [edit: grammar]