Legislating on the basis of an aversion to government intervention in financial markets can paradoxically result in more massive intervention. The latter can come to pass even amid an anti-interventionist ideology on account of the emergency conditions that call for the extraordinary incursion of government into a market. Undoing the Orderly Liquidation Authority of the Dodd-Frank Act in the U.S. is a case in point.
The full essay is at "Financial Reform and Free-Market Ideology."