Glueball,
If food is the same as MIA, it is unlikely that that cars and appliances are anything less than in MIA, and probably considerably higher, there is only housing that might be less than MIA, so are we saying that the facility of having a live-in maid for $150 is worth $4,000 to $6,000 a month?
I suspect if you gave them the $4,000 they would do without the maid.
In any event would anyone want to go to Chile to work for $4,500 a month?
Those who might want to go would expect a lot more than that.
Perhaps if I put it a different way. How would US pilots, or UK pilots, feel if at the stroke of a pen a bunch of East Europeans, or Africans, or South Americans replaced them when they started to agitate for a raise. Right now they have strong barriers to prevent that from happening, but few third world countries protect their own.