The author claims that Marx’s ideas have succeeded, the proletariat has been victorious in the class conflict but the victory is completely different from what Marx has expected. The vision of the proletariat state ended up in a total failure. The vestiges of Marx’s proposal testify to complete inapplicability of his main ideas to the circumstances of the contemporary world. The concept of a state managed by the proletariat class turned out to be defective. The ownership of the means of production has failed. The concept of private property defended itself and has even been strengthened. And where a public ownership won the upper hand, as in State Treasury, it turned out to be institutional and not collective. Moreover, the state interferes more and more vigorously in private businesses and their activities. On the other hand, however, the proletariat succeeded in the area of employment law where it won some durable legal guarantees. Thus Marx correctly perceived certain needs of the proletariat but proposed inapt solutions to them.