There's certainly a lack of caring there too. But they do have some financial incentives to put thought about the people in. It can hurt a personal brand when dealing with backlash against investment properties (and that can go on to affect associated corporate brands). It can also affect the investors if they mess up the economy of an area that had been contributing to their revenue.

I'm not trying to boil this down to "foreigners bad. locals good." But there are various factors that play in to how much one cares about their impact on others, with physical and political distance being two of them.

In the end the "foreigners" angle doesn't matter. If it were NYC billionaires buying up Seattle property and leaving it vacant the result would be the same: locals suffering at the hands of remote money.