Of course not, but higher per-capita is the easier and more humane thing to target. If you account for the fact a lot of China's output is for the US then the US would be both higher per-capita and probably highest overall too. Yet despite having over 4x the population China has only about 2x the total output. That means the US is vastly inefficient compared to China. It's easier to get gains by improving an inefficient system versus an efficient one. In other words, the US it the low hanging fruit, not China.