China had a bureaucracy based on 'tests' for many hundreds of years. it is easy to imagine how a higher IQ but lower creativity culture evolved. character based language may have added to that.
The Mandarin system.
I actually think such a system would benefit THIS society.
Imagine a class of government workers who were impervious to bribes.
Imagine a class of government workers who were competent because they were NEVER chosen for their jobs based on their political affiliantions.
Imagine a government bureucracy where if the official was found to be bribed, both that official and the briber died a horrible death.
Yet China was once ruled but a nation of "illiterate fools" by a ruler who couldn't read or write....Temuchin aka Ghengis Khan
Yeah China was taken over by the Khans in the 12 and 13th centuries.
The mandarin system started (according to WIKI) in 605 before even China was united.
Hence the administrative system known as Mandariansm lasted in various guises for 14 centuries right up into the XXth century.