Quote from : Marx: A Very Short Introduction Book

No society has succeeded in abolishing the distinction between ruler and ruled... to be a ruler gives one special status and, usually, special privileges. During the Communist era, important officials in the Soviet Union had access to special shops selling delicacies unavailable to ordinary citizens; before China allowed capitalist enterprises in its economy, travelling by car was a luxury limited to tourists and those high in the party hierarchy Throughout the 'communist' nations, the abolition of the old ruling class was followed by the rise of a new class of party bosses and well-placed bureaucrats, whose behaviour and life-style came more and more to resemble that of their much-denounced predecessors. In the end, nobody believed in the system any more. That, couple with its inability to match the productivity of the less bureaucratically controlled, more egoistically driven capitalist economies, led to its downfall.