No one wants to talk about it

We cannot let higher income Sinkies to buy HDB flats. It will add to the demand and deprive lower income Sinkies from the chance of getting one, or they compete with the lower income and lowering their chances for a public flat. It sounds so clever, so logical. How many higher income Sinkies would want to buy a HDB if they could afford the million dollar private properties? No, they must be