Create more affordable housing and the ethics will take care of themselves. Salary is one of the most important factors in most job decisions, especially for folks that have dependents. And living expenses in a given region, which are most significantly influenced by real estate valuations, are a big determinant of salary requirements.

Fix the housing crisis in highly inflated markets by creating more supply (i.e. rescinding exclusionary zoning bylaws) and job candidates will be able to afford the more "ethical" choices.