I think the fact that people can pick and choose which contracts to engage in, can back out at any time, and in many cases if you live in a rich country, opt out altogether. Even if there are "pressures" (either socially induced or biological) to work in some form, "consent" seems like a perfectly reasonable word to describe modern conditions.

Like, do we really, truly believe the current world is no different from the feudal past? Is that not hasty reductionism?