If you have some time to spare, here's a great paper on a similar topic: the (mis)use of mathematics and in particular equilibrium methods in economics after Samuelson and Hicks ("What Went Wrong with Economics?", Peter J. Boettke, 1997): http://www.the-dissident.com/Boettke_CR.pdf

Pretty much every debate on economic policy between the left and right is full of fallacies emanating from this episode in history.