Most of us without meaningful capital are either forced to do it in practice with our labor, or be cast out to serve the owners in another way: as capitalist scarecrows. Our homeless exist on purpose, it wouldn’t be that expensive to provide minimal shelter. They exist to die slowly and publicly of exposure, and constant police capital defense force harassment, to terrify the capital batteries into continuing to show up to their jobs to produce value for their owners.
One way or another, those without capital are forced to serve the owners. Nothing “voluntary” about modern market capitalism, short of slitting one’s own throat.
You will serve the owner’s insatiable greed directly, or you will serve as an example and threat to the others.