One of the reasons that the schools pay the foreign teacher more is that he/she had to leave their own country and come to a new country to live and teach. Also, the standard of living in most of these countries is WAY BELOW that of most of the countries where there are native English speakers. It is a sacrifice in living standards and pay to come to most foreign countries- the schools recognize this and try to accomodate foreign teachers. Plus, foreign teachers are automatically better equipped to teach culture and current English trends than our foreigners. I wouldn't dream of thinking I could better teach ( for example) Chinese culture than a Chinese person can. Just in the same way, my wife (who is Chinese) would not dream that she can teach American culture better than I can.