It's nothing personal, I just think it's partly true that. So I added some, including labour issues.
You mentioned median income, According to Zhongjin data, 95% of the population has a monthly income below 5,000 RMB. I don't know the source of your data.
Thank you. I see its data from SalaryExplorer, but I couldn't find where SalaryExplorer source.
Caixin (link, but chinese) did a study last year,
Low-income households, comprising about 300 million people, will have a per capita disposable income of 8,333 RMB in 2021, or 694 RMB per month.
while lower-middle-income households will have a per capita disposable income of 18,446 RMB or 1,537 per month.
High-income households, which make up 20 percent of the population, have a per capita disposable income of 85,836 in 2021, or 7,153 RMB per month.