It seems to me that the reverse of your policy would be best for the world. If you free people to move, they can choose community, friends, family, politics over being tied to a single geographic location where most of the activity is. This would help with availability of technologists in many disadvantaged locales, and would provide an influx of taxable income and consumer spending locally. This should have the ultimate effect of improving economic conditions in depressed areas, and when that happens you can actually come back and reduce everyone's wages across all locales because the economy is healthier and more robust. It works out for the owners too in the end, if they take a long enough view.