I have two question for all of you here,

1st even based on the analysis given about the living standard and the cost of education in the west and in the developing country, I still don't believe expatriate from the developing world are not being paid enough based on the living expenses in Qatar. I have seen a study by QNB few months ago the average salary in Qatar is Qrs 2,900. Do you think this can cover the living expenses of people residing in this country? the same study shows a minimum salary for a single expact in Doha must be somewhat like Qrs. 8,400.00 to survive in Qatar. So based on this even considering the things you have mentioned I still say many people especially from the developing country are being exploited.

2. I am sure there are many expatriates from the developing world living in the west, and they are not being discriminated on the basis of their passport, so I can say your analysis can not justify the point.