[analyst74]

Modern China has a pretty short history and many in power today went through a more difficult time when they had to fight for their survival. 996 might seem totally reasonable to them. There are also many role models (i.e. https://en.wikipedia.org/wiki/Lei_Feng) who sacrificed their health/life for work being praised in literatures.

Also, China is not a wealthy country, slipping into poverty is still a real possibility for many.