The same wars through which the Roman patricians ruined the plebeians by compelling them to serve as soldiers and which prevented them from reproducing their conditions of labour, and therefore made paupers of them (and pauperization, the crippling or loss of the prerequisites of reproduction is here the predominant form) these same wars filled the store-rooms and coffers of the patricians with looted copper, the money of that time. Instead of directly giving plebeians the necessary commodities, i.e., grain, horses, and cattle, they loaned them this copper for which they had no use themselves, and took advantage of this situation to exact enormous usurious interest,
Yep, that's revolutionary, in one sense (acceleration of old economic mode's destruction)
It must be said that this does not make a transition to capitalist mode of production necessarily tho, as it is conservative in this way
Usury, like commerce, exploits a given mode of production. Usury tries to maintain it directly, so as to exploit it ever anew; it is conservative and makes this mode of production only more pitiable. The less elements of production enter into the production process as commodities, and emerge from it as commodities, the more does their origination from money appear as a separate act.