Even after Marx respectlessly declared the "Expropriation of the Expropriators" as his proclaimed objective - it had different consequences for the future and did by no means mean the compensation for an injustice that happend eons ago. Marx's critique was rather aimed at the elimination of the daily renewed plundering inherent of the capitalsystem. Allegedly, this plundering guarantees that the value of all industrial produce will allways be devided unfairly: mere subsistence for the workers, rich surplus for the capitalowners.

One of the most severe/momentous thesis of "ownership" (propertyholders) developed out of this marxian surplustheory. In this light, the civic society, a de facto producing class, appears as a rootedly cleptocratic collective. They appear as even more condemnable as they claim to base their actions on general equality and freedom - not least the freedom of contract when entering an employment relationship. But what legally appears to be a free exchange between employer and employee was nothing but another form of what Proudhon had called "extortionary property". This leads directly towards the very surplustheft which allegedly emerges in every profit of the capitalside.
Wagepayments conceal the taking beneath the pretense of giving - it is really plundering in the guise of a voluntary, just trade. Based on this moralized stylization alone, "Capitalism" was able to evolve into a political slogal and a systemic swearword.