A lot of Chinese firms outsource textil work to Cambodia, Bangadesh, etc.
The nominal value of a month's wage is not the whole story; one has to understand the "purchasing power parity" - what you get for your "dollar." This varies from country to country, but also within one country through time. So I can say my Dad's first job out of college in the 1940s was a very impressive CA$ 800 per YEAR! And just before I retired my firm sold my time for close to (a cheap) CA$ 1600 AN HOUR!
In the late 1990s while in Vietnam I bought a tie for US$ 1.00. The seller made a profit on it (I didn't even barter with him for it), but when I looked closely to the label, I saw it was made in Colombia! (and so included in the price was even the transport cost from South America.) Asian countries are not the only low cost producers. And compariing salaries and costs across countries and through time is tricky. Perhaps more attention should be paid to the non-salary working conditions that people are forced to accept.