Ability, Need, Collective

Because of its 'from-to' frame, Marx' formulation 'From each according to one's ability, to each according to one's need' seems, at first glance, to propose an individual sowing-reaping correlation.  However, upon closer examination, the two clauses are severed, with reaping determined independently of what one has sown.  But, that, too, is a superficial analysis.  For, the context is Collectivist, i. e. sowing and reaping are both collective activities, so there is a correlation between them, just not an individual proportioning.  Thus, the formula is contrary to standard Capitalism in two ways.  First, it represents behavior that cannot be reduced to an Egoist principle, and second, it distinguishes vital Need from elective Want.