"The philosophers have only interpreted the world, in various ways; the point is to change it," Karl Marx's "revolutionist" danger to the societies of the day were for the workers to gain control of the machines to share in the profit. The true father of modern Socialism and "the greatest good for the greatest number," "each according to abilty..." etc., was Jeremy Bentham. If I remember correctly he was writing somewhere ca. Pepys (sp?) et. al. It was at the time called Benthamism. The closest approach to Communism is a Catholic Nunnery; even Monks have too much Testosterone to do the right thing. (obviously as some priests, rabbis, and assorted middle eastern goat-herders. hmmm.)