Sheer talent? Hmm... Hardwork?... true(hardwork to the point of exploitation) don't demand things? ...true (they are scared of the contractors).
Truth is they accept subhuman illegal salaries to work long hours because they are desperate. With these salaries (including a pittance they send back home) they can barely survive in slums, cannot afford toilets etc. Their biggest selling point is not talent but willingness to work for illegally low salaries.
