There was not a new "beaurocratic class." Government ownership of the Means of Production is Socialist, as profits are controlled collectively, rather than by Capitalists. Beaurocrats and state planners were not a "new class" but an extension of the workers.
The whithering away of the state is IMPOSSIBLE until global Socialism has been achieved. The USSR could not possibly have gotten rid of the military while hostile Capitalist countries existed. Additionally, Statelessness in the Marxian sense doesn't mean no government, but a lack of instruments by which one class oppresses another.
Wage Labor did not persist for the sake of Capitalist profit, but to be used via the government, which paid for generous safety nets. To eliminate money in a Socialist state takes a long time, and cannot simply be done overnight.
I really think you need to revisit Marx. I suggest Critique of the Gotha Programme.