Oh, yeah; that's a good one. I've read sci-fi books that are almost this, but less obvious about it; Libertarian wet dreams. I mean, fair enough, there's plenty of communist fiction. But sometimes it gets a bit absurd.

One of my favorite all-time sci-fi trilogies is The Golden Age trilogy by John C. Wright. And it's a sort of libertarian fantasy: übermensch against the forces of evil (which aren't socialists; it's not that kind of libertarian fantasy) who triumphs mainly by force of sheer will. Great books, and I think the ending is about the best I could imagine, because it inverts the entire libertarian message. The libertarian ideal society exists because The Gods allow it to. It's kind of like Anarchy Park in whichever Larry Niven book that was: anything goes, except violation of other's freedom, all enforced by all-mighty AI cops. It's such a funny caveat.

Incidentally, I didn't know about that Prisoners Dilemma strategy; thanks! I learned something new today.