I remember when the salaries in India for a full-stack engg were in the range of $2000 / mo ($24K) and it was considered a "good" salary. We had to work on Saturdays and often Sundays. And I'm not talking of some local company, but the so-called tech leaders like Wipro.

One time I was travelling with a french colleague and while I was given an economy class ticket my friend got a business class ticket on the same flight. We were doing the same work on the same project.

There is so much disparity in this world :(