I think an important detail to consider, if I remember it correctly, is that Marx is assuming that there's a moral imperative to consider when paying workers ba

I think an important detail to consider, if I remember it correctly, is that Marx is assuming that there's a moral imperative to consider when paying workers based on the value of their work because they aren't able to create this kind of value on their own in an industrialized society because the means of production is otherwise owned/controlled by a powerful establishment (bourgeois or something). An agreement between labor and management/capitalism is required to make sure that the workers' are able to take home a pay they find adequate considering the value they create. I think a way Americans have been able to strike this balance in the past is via labor unions. This probably isn't so much the case any more.