I'm not aware of any political system that turns out, in practice, the way its theoreticians envision it "genuinely" being. Our mental simulations of what should happen in a human society ordered by some principle usually turn out to be abysmally wrong, since complex systems are full of negative feedback loops and other intuition-destroying things.
I really think that nearly all political theory (up to and including Marxism and Libertarianism/Objectivism) belong to the pre-complexity-theory era. Complexity science and all its related fields (evolutionary dynamics, etc.) are just devastating to those theories. One big meta-lesson of these fields is that our intuition is calibrated for dealing with small scale local systems and simply falls apart in these arenas. You have about as much intuition for what happens in an economy of 300+ million people as you have for what happens at the event horizon of a black hole.
We seem to have yet to produce a post-complexity political philosophy. Most political thinkers seem to still be in denial and clinging desperately to their 19th century (and earlier) notions of human behavior and social dynamics.