It would be much worse if they paid way above the local wages. It would trigger corruption. You'd could up with a black market in applications for the jobs, or protection racket, or highly paid leaks of the job interview problem sets, imagination has no limit.

You can say it's OpenAI's duty to make sure all these things don't happen. But they are not there to police the local society. They are there to run their own business. They don't have the competency to make sure corruption does not happen.