> Finley sought to demonstrate that the ancient economy was not ‘proto-capitalist’ in its orientation but rather a decidedly alien economy where economic relations were structured by status, legally enforced class and slavery more than money or profit.

This is one of those things Marx really nailed with the idea that a "mode" of production wasn't just determined by labor and material but that it is also determined by the relationships between the participants in a political economy or the "relations" of production.