The Nazis scapegoated the Jews; the communists scapegoated the bourgeoisie; the New Left scapegoats the rich. The Occupy Wall Street noise is an attempt by the Democrats to keep the narrative on point: to keep the American people's anger directed at the left's favorite scapegoat, the rich, and to keep the blame away from the Democrats.
Unlike the Tea Party, which was a spontaneous reaction to the Democrats' frightening power grabs, OWS (or the Flea Party) is a calculated movement orchestrated by the leadership on the left. An ad in Craig's List offered people between $350-$650 a week to protest. Behind the ads is the Working Families Party, which is tied to ACORN. The money for the "Occupied Wall Street Journal" comes from George Soros, among others.
So there is something happening here. But what exactly? Here is my explanation, as informed by my understanding of Austrian economics.