This problem is usually sidestepped by the argument that teachers, policemen, sanitation workers, etc, can't live in the communities they serve and that that's fine as a result of a wider services market, better transportation etc, etc, etc.
But at some point you do have to concede that most of the people driving their beat-up 1996 Hondas to bring you fresh sashimi aren't valued in the six figures - and you have to acknowledge and design for it.