The exchange of goods and services at scale. Commerce is the machinery; whether it extracts or circulates is a design choice.
Latin commercium (trade, traffic), from com- (together) + merx / mercis (merchandise, goods), the same root as merchant and market; exchange conducted at a scale beyond a single trade.
The machinery of exchange at scale, named for the goods that move through it rather than for who benefits. Whether it extracts or circulates is a separate question from what the word itself names.