Same thing happens here in Philly. Every 20 years, housing projects are demolished and new ones built. Why? because they deteriorate into criminal and social leech Utopias. Then the Democratic mayor steps in and uses public money to tear them down and build brand-new pretty housing units, thinking that it's the apartments themselves that are the problems.
We can build these people skyrise penthouses for chrissake! It still doesn't change who they are and what their principles are!