Life expectancy not only increased due to industrialization, but land reform resulting in an end to famine, free healthcare and education, and nearly eliminating homelessness. Purchasing power is different in China, and as such 2,300 CNY gets you a lot further, and China has 1.4 billion people. More importantly, though, you can see that the number was over 90% in 1980, and this dramatic transformation was a deliberate effort.
I believe facts and statistics, and you're trying to minimize them now that I gave evidence for my claims. Keep moving the goalposts.