So it wasn't the banks, wasn't the govts, wasn't the regulators - it was the markets.
"Markets don't place no emphasis on nothing"
People drove the profit motive.
Markets are required for trading from wheat to oil, from CDSs to CDOs. So it's the markets fault, even thought it was the regulators that allowed it, the govts that wanted it, and the banks that committed the act.
Markets don't demand, they faciliate the wishes of other actors. your comments make no sense.