I don't understand the question. Greed exists in every human system because it's a human quality, not a system quality. Real people are driven by many, sometimes conflicting things at the same time.
Non-greedy action is by definion an action that doesn't directly and materially benefit the one acting. That is universal across all political and I would argue all biological systems.
Non-greedy action is by definion an action that doesn't directly and materially benefit the one acting. That is universal across all political and I would argue all biological systems.