John Maynard Keynes once famously said that “even the most practical man of affairs is usually in the thrall of the ideas of some long-dead economist.” He probably didn’t put it nearly strongly enough. The ideas that have produced, for example, the unbridled liberalization and financial excess of the last few decades have emanated from economists who are (for the most part) very much alive.
In the aftermath of the financial crisis, it became fashionable for economists to decry the power of big banks. It is because politicians are in the pockets of financial interests, they said, that the regulatory environment allowed those interests to reap huge rewards at great social expense. But this argument conveniently overlooks the legitimizing role played by economists themselves. It was economists and their ideas that made it respectable for policymakers and regulators to believe that what is good for Wall Street is good for Main Street.
Economists love theories that place organized special interests at the root of all political evil. In the real world, they cannot wriggle so easily out of responsibility for the bad ideas that they have so often spawned. With influence must come accountability.