@Linkat,
No, they do not. The wealthy Liberals of Cambridge, Mass are no different than the wealthy Liberals of Takoma Park, Maryland or Boulder, Colorado. They make a lot of money and are willing to pay more in taxes to support social programs but they never ever, ever want to see a halfway house in their neighborhood.
They're snobs, they demand much from the cashiers and workers at their local food coops, and proudly display their Obama/Biden bumper stickers on their Subaru wagons. They wear Birkenstocks and are often quite hairy, and they don't care if their neighbors are a married couple named Adam and Steve. They are not Socialists.