The Manifesto was published the year before Wage Labour and Capital, so we can expect that the latter was a refinement of the ideas in the former.
The Manifesto says 'the modern labourer on the contrary, instead of rising with the progress of industry sinks deeper and deeper below the conditions of existence of his own class'. But as Marx makes clear in Wage Labour and Capital, Capital and the Grundrisse, 'the conditions of existence of his own class' is a relative value. The value of labour power is dependent upon the historical conditions. That is why the labourer can have more goods, but a smaller share of the social wealth, or a smaller slice of a larger cake.
Marx thinks that workers will take action according to their *share* of the total product, rather than according to the absolute quantity of goods available to them.
So, for example, workers in the 1850s were much poorer than those in the 1880s, but those in the 1880s were much more combative; or similarly, workers in the 1970s were richer than those in the 1950s, but again were much more combative.
In message <s90ee983.018 at mail.ci.detroit.mi.us>, Charles Brown
<CharlesB at CNCL.ci.detroit.mi.us> writes
>CB: Hey, good point ! Listening to some of these people, you would wonder why
>Marx or anybody would think we need a revolution to overthrow capitalism. I
>mean humanity is making so much material progress with capitalism only the
>unabomber would say anything bad about it.
I wonder what Charles makes of Marx and Engels' Communist Manifesto then with its argument that
'The bourgeoisie, by the rapid improvement of all instruments of production, by the immensely facilitated means of communication, draws all, even the most barbarian, nations into civilisation' (p38, Peking ed.)
Or 'The bourgeoisie, during its rule of scarce one hundred years, has created more massive and more colossal productive forces that have all the preceding generations put together.' (p39)
Does this praise of the bourgeoisie demonstrate that Marx and Engels wanted to see their rule perpetuated? Not a bit of it.
-- Jim heartfield