Every Ferrari dealership in the country should have a framed picture of Ben Bernanke in their lobby. It should read: "Our #1 Salesman."

The largesse of the Federal Reserve over the past five years has amounted to one of the largest ever subsidies to the American wealthy—fueling record fortunes, record numbers of new millionaires and billionaires, and an unprecedented shopping spree for everything from Ferraris to Francis Bacon paintings. The prices of the assets owned by the wealthy, and the things they buy, have gone parabolic, bearing little relationship to the weak, broader economy.