When my wife and I left China, she was making about 7,000 rmb /month as the top sales agent in her company. In August of 2007 she told me the worst agent in the company was making 10,000 rmb / month due to the housing boom in the private sector.
It has cooled a little compared to then, but the housing market is still pretty hot. Of course, the Sichuan province is now the focus of economic development for the Southwest.
The whole economy has been overheated for what, 15 years now. Amazing there has not been more inflation but then I am no economist.