These countries cannot be horizontally compared.

India and China has about 20 times more population than South Korea.

Indians are more fluent in English on the average because India was

British colony for long time.

China has long history of immigration not only to US, but all over

the world.

Koreans tend to be self-employed like Jewish once were. So their apparent

income could be less than their real income.

Comparison and positive reflection on self is good thing, but no need

to underestimate and beat up one’s self.

Remember,if you don’t take pride in yourself, nobody will.