What were the effects of filial piety on East Asia?

In Confucian, Chinese Buddhist and Taoist[2] ethics, filial piety (Chinese: 孝, xiào) is a virtue of respect for one's parents, elders, and ancestors. The Confucian Classic of Filial Piety, thought to be written around the Qin-Han period, has historically been the authoritative source on the Confucian tenet of filial piety. The book, a purported dialogue between Confucius and his student Tseng Tzu, is about how to set up a good society using the principle of filial piety. Filial piety is central to Confucian role ethics.