True, but it's also usually more desirable for a teacher to work at a higher performing school in the burbs than a low performing school in the city.
Well, city schools pay a lot (relatively speaking) so this isnt always true. But, would a teacher pick TJ over Clairton? Probably. But this country produces such an oversupply of teachers that there is going to be very little difference between a rich schools teacher and poor school teacher.