What would the logic be? If it’s just government pouring money into the economy it would work just as well to spend it on space or science or education or whatever. Who benefits from building empty houses as a capital sink?
This talk is definitely propaganda to a degree, but describes the Chinese administrative promotion system.
https://www.hoover.org/sites/default/files/uploads/documents...
This study indicates that 2/3 of provincial leaders hold advanced degrees. I don’t have the comparative one for the US but I am pretty certain this is not the case for governors.
No source was requested for the claim that they have 7th grade education, I’ll note.