I would like to note, in addition to the above, that the Middle Ages are defensible from an economic, political, and cultural point of view also, not "merely" the primary spiritual one. All of society functions (if it functions at all) as an analogy of Being - the body exists because of the soul, the soul, because of the spirit, spirit because of angels, angels because of God. Interactions between men exist because deep heaven has communion, correspondences, and co-inherences. Therefore, politics is not neutral or indifferent. The fact that modern men like to wet-dream about the Middle Ages being "Fascist" or "Totalitarian" is utterly beside the point - such a point of view deliberately ignores historical evidence in ancient, medieval, and modern periods. Comprehension (as they say) is deliberately avoided. "Theocracy" is not only desirable, but inevitable (see this on how the modern period gets away with it). Theocracy or Mediocracy. You can choose, and you'll eventually come around to Theocracy, it's just a question of whether you want to "suffer into Truth" or use your Reason.