Lots of people want a society free of greed and power-mongers. But even if you could build such a thing, you'd have to cope with natural human diversity and replacement. Someone always rediscovers the benefits—real or imaginary—of hoarding power. It's a feature of the human—animal—brain. Every new generation has its share of psychopaths and megalomaniacs. Delusions of grandeur appear spontaneously. A society that can survive internal defections must be able to recognize and suppress such defections. It needs a social immune system. But that would require absolute authoritarian surveillance and control. Such control always involves special social strata who are free from such control. At best, they are meant to watch one another. But soon enough, they agree to defect collectively, exempt one another from restrictions, and revert to anarchic games and competition. Every society fragments, eventually. Power's rewards—temptations are real, and irresistible. No utopian model can accommodate this truth.