I'd imagine it'll be around insurance underwriting for the structures and the financial instruments attached to them.
Publicly traded banks have an obligation to their shareholders to make money. Nobody wants to be the first to abandon a profit center. A classic multipolar coordination trap that, theoretically, governments are here to fix.
Why, then, would they make what the facts indicate are bad loans?
Greed is a partial answer, sure. This is hardly the only place where corporations trade risk in the distant future for revenue today.
But my instinct is that the greater part of it is inertia. They make the loans because they've always made the loans and it will take a good deal of energy to change that.
My guess is that it's an area where change will come as a short, very sharp shock. One year all the banks will make these loans and the next year none of them will.
Just keep an eye on the rich people.