You may not know, real estate developers have a creed: Property should be put to the 'highest and best use' possible.  That means whatever generates the most revenue.  When developers (and those wealthy who fund them) do consent to low-income housing, they must be subsidized in some way to make sure returns are high enough.  Even with subsidies, developers often cut corners on quality.  They don't worry about effects of AGW because they expect to be insulated from it.   No conspiracy theories, just 'natural selection'.  I don't waste time worrying about the facts, but I am aware of them.