Find it very strange people are sympathising with Ögedei, when this series has been very explicit in what an empire is actually built on. Obviously the Mongols (or Khwarazm or Jin) weren't worse than other empires and empires does bring material benefit to some, sponsor arts, establish new connection etc, but this is built on unimaginable brutality, ultimately for the benefit of a small ruling elite: be it Roman, Mongol, British or US.
It certainly is easy to be vowed by the material legacy (especially when this takes place so long ago). But every single stone and statue was drenched in blood of real living people so Ozymanidas could write: "Look on my works, ye Mighty, and despair!"
Ögedei's vision isn't elevated, it's aloof.