Capital as value in motion is not distinct from matter in motion shifted by labor; labor acts as capital, not just at its behest. Marx says: "Labor is not only the use-value which confronts capital; it is THE USE-VALUE of capital itself." This labor is absorbed by productive capital and acts as "a moment of capital", he claims. All the productive powers of labor appear as those of capital. The category of value is rooted precisely in capital's struggle with labor to accomplish this 'transfer' of its productive powers.
Since the workers are 'possessed' by capital and the material labor process is simultaneously a valorisation process, the same thing has two frames of reference. But this is not merely a matter of different ways of talking, or of the coexistence of alternative realities, it is also a matter of determination, of one side informing the other with its own purposes. Capital determines the orgnisation of production: but the character of labor, natural resources and machinery limit it in this endeavor. Although capital is hegemonic in this respect, its subsumption of labor can never be perfected; labor is always 'in and against' capital. Albeit that the production process is really subsumed by capital, the problem for capital is that it needs the agency of labor. Even if the productive power of labor is absorbed into that of capital to all intents, it is necessary to bear in mind that capital still depends upon it.