No fit helper

 Happy to stipulate Marx was a master of the superfluous

But you know that thru' Capital Marx makes these points - surely you can agree? 

I agree he does make these points, but obliquely. In his inaugural address to the International, he refers to the Ten Hours Bill as the victory of political economy of the working class. In Capital, he refers to disposable time twice with sarcasm toward the bougeois attitudes toward it. The chapter on the absolute general law of accumulation is indeed a treatise on the necessity of the superfluous and the superfluity of the necessary. It is all there, IF YOU KNOW WHERE TO LOOK. But nowhere in Capital does Marx state that "The whole development of wealth rests on the creation of disposable time." And his footnote in Capital citing The Source and Remedy could not be less informative about its contribution to his analysis. We have Marx's own testimony in correspondence with Engels about the necessity of presenting the material in a very different form than it had been worked out.