I have known a few from their network infrastructure biz in the past and a lot of them are actually paid not too shabbily nowadays. Too much job competition from other competitors in the area, plus the tendency for company IPR to occasionally wander off with the employee, plus the steeply rising cost of living, means they try hard to keep their employees.
Chine isn't a "low-cost" centre for everything any more - that title has moved on elsewhere
