von Neumann on game theory. QED. (the other QED).
The only thing you've helped prove, as requested, is that there are far better stories about physicists and economics to submit here than a political essay by Albert Einstein. :)
Einstein is championing a system shown not to work. Why should I spend any more time refuting that in 2010 than I would trying to counter some old essay by an economist on the luminiferous aether?