Earlier quoted context omitted.
Devils advocate: It's possible that Amazon will be a drain on a region. The cost of housing goes up for everyone. The best and the brightest of the region get sucked back to HQ1 The startup ecosystem in the region gets drained to work at/for Amazon
Cost of housing going up also increases the wealth of homeowners in the area. This is not purely bad.
But you can only sell a house once so it's the rising tide isn't really raising their boat like it is for the tech workers. It's more akin to winning a scratch ticket that also forces you to move and maybe get a new job.