You said nothing about collectivism. C4 did.
Capitalism did not work at all in the Middle Ages, because lending money at interest was called usury, and the Church proclaimed that is was sinful. Socialism certainly worked better in China than in Russia, because collective labor for the common good (ie, all the peasants planting and harvesting all the rice (or wheat) as a team, rather than as individuals), was already an established and useful tradition.
It is basically the agricultural equivalent of an assembly line. It results in more labor getting done faster than individual planting, and of course, it means that the fields can be harvested in the same order, with the same number of days given over to growing the crop.
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Mass production is a form of collectivism.