Pushing out poor people and replacing them with richer people is always good for the community. Not so good for the poors that get pushed out though.
But isn't that kind of the natural order of things? How poor do you let a community get before you start allowing people of means to move in. Is it a choice of gentrification vs ghettofication?
With Amazon(and practically everything else) it's all about the money.
If I was Bezos I'd be hunting some cheap land in the exurbs where some soybean farmer has gone bankrupt and building my own city around my new second headquarters campus.
"Be yourself; everyone else is already taken."— Oscar Wilde