The reason is that although Daigaku-ryo was modeled on the university system in Tang Dynasty China, unlike in Tang Dynasty China where the rule that a nation should be governed based on Confucianism was already established, in Japan Confucianism coexisted with Buddhism and traditional Shintoism, and the ruling classes in Japan did not pay heed to the philosophy of Confucianism as much as those in the Tang Dynasty did.
この背景には、大学制度の範を唐の制度に求めたものの、儒教による国家統治の原則が確立していた唐とは違い、仏教や古来からの神道が儒教と並立した日本の支配階層においては、儒教理念が唐よりも重視されなかった。