Chinese technocrats seem to achieve a lot when it comes to technical things, but not as much in societal context.

The "lying flat" movement seems to persist, the willingness of the young to accept 996 jobs is close to zero, and all attempts to raise the abysmal Chinese fertility rate have so far failed. The (long abandoned) One Child Policy on the other hand worked way too well and might have cost them 200 million young people.

Social engineering is hard.