The point is that this is only one part of the problem. "Wealthy-ish local people" protesting a condo development is not enough to explain this absolute explosion in home prices.
The government may be faceless, but there are lots of things that could have been done - including more "development-friendly" practices. However, there's always a cost - do you sacrifice environmental protections? Democratic government principles?
You can't just blame whatever out-group you dislike at the moment. If those neighbors you described vanished as of 5 years ago, the prices of houses would have risen just the same.
The reason that I blame government is because they explicitly had a responsibility to protect society from this. Officials have either neglected or outright contravened this responsibility.