The thing you're missing is that money is required to live. If I "voluntarily" decide to stop earning it, or if I end up in a job where I earn substantially less, a state employee with a gun will eventually show up to my house and evict me from it. If I am hungry and take some food from a store, a state employee with a gun will put me in a cage. The idea that there's no power dynamic at play here is absurd.