Which is why employers in this region need to pay significantly more than "home" to recruit appropriate staff.
Some of course decide to then reduce or supress expatriate salaries, foolishly comparing local salaries with the home of the expatriate. The inevitable trend is that over the longer-term, the employees then drift home, thus denying the employer the skill-base he sought in the first place.
Fortunately this mentality is rare in most enlightened companies in Asia and Cathay particularly could never be accused of such short-term thinking.