Because politics. Yes, the landlord will be mad, but for every one of them there are dozens of happy tenants. The tenants getting a preferential rate will liv

Because politics. Yes, the landlord will be mad, but for every one of them there are dozens of happy tenants. The tenants getting a preferential rate will live there and vote/lobby to protect the system for generations. The new guy paying 3x probably came from elsewhere, and will return there shortly.