Adding to this, fascism is a type of capitalism, with capitalism being defined as its main motivator for economic, social, and technogical development is profit and the means of production are privately owned. Fascism occurs when capital runs out of colonies to exploit, so it turns inwards to try and create an autarky.

Rome was a slave economy where the means of production was literal slaves or worked by members of the plebian class: free citizens who didn't own land. The patrician class was composed of both wealthy business owners and aristocratic nobility who inherited their titles. The motivation of their economy was the acquisition of land to be used for a variety of purposes and the acquisition of slaves. They weren't seeking profit so much as they were seeking leisure and security from barbarians.

Eventually, this system gave out in favor of feudalism, where there was no longer a large slave class and military protection was the primary motivator for progress. The plebians and slaves became consolidated into peasantry, where they were tied to the land under a lord which they used for sustenance farming with a fraction of that used to pay a tithe. Nobility was then expected to maintain military training and equipment, while also paying a tithe to someone higher up.