Because despite all glamour and luxus, this is still considered a 3rd world country, and discrimination is among the factors that are keeping it there. There is discrimination all over the world, but in our 3rd world countries is not penalised, so it is accepted as 'normal'. Sad to see how your race is more important than your qualifications, but still, so many of us accepting it and even getting used to it, must mean it is not so different back home.