To me, the issue is it's not enough to merely say "this job is unethical", unless your point is actually "the economic relationship between the first and third

To me, the issue is it's not enough to merely say "this job is unethical", unless your point is actually "the economic relationship between the first and third world is unethical". The first is true if the second is, but it's a small and weak part without the second explicitly stated to back it up.