They are sides to the coin, as they say. Salaries are X in San Francisco and NYC because its competitive and cost of living is high. So are taxes. But then ,if

They are sides to the coin, as they say. Salaries are X in San Francisco and NYC because its competitive and cost of living is high. So are taxes. But then ,if Facebook hired 12000 people in SF it means that they are worth the (say) $250K each a year and then some. If they work from Vietnam or Small Town, Georgia FB still gets the same benefits but the employees would have like a triple or quintuple salary. I don't have an answer to this, but I'm almost certain that people in a foreign country office don't get paid the same as those that work in SF or NYC. But then, FB, Google and the likes are already super-profitable so it's hard to argue in their favor.