If somebody else is willing to do the same job for less, it means your asking price for your services is too high. Americans love to complain about stagnation of wages, while in reality it just means that people in other parts of the world have reason out of poverty competing with them on a labour market. If you value a Chinese life just as much as an American one, the fact that American worker can now afford one car per family instead of two but a Chinese worker can now eat meat on a regular basis clearly is a benefit to humanity.