"But wealth to me is GDP per capita"

I think wealth is actually measured by the number of purple cats. However, there is some called the 'dictionary' which you can access with something called the 'internet'. The 'dictionary' defines wealth as 'a great quantity or store of money, valuable possessions, property, or other riches'.

China has a wealth / GDP of 4.47. The US has a somewhat higher ratio coming in around 4.945. Given that the GDP of China is more then 22% greater than the US, China has greater wealth as well (as defined by the 'dictionary'). Of course, China and the US are lagging badly in purple cats.