I offer myself as proof that money (as measurement of exchange value) is completely separate from capitalism, property, competition, hierarchy and other nasties I, as an anarchist, judge unethical.
Property, ownership, etc aren't real; the emperor has no clothes. I know this because these notions are meaningless in interactions between humans and insects and plants. I can tell a leaf-beetle: "This is mine." The beetle will just say "pfft, whatever." I can use force and kill the beetle; I can rationalize and attempt to justify that action with a religion where property is sacred. Pfft, whatever. I'm not saying it is wrong to kill beetles; I do it all the time. I'm not saying we should let strangers into our homes, that's stupid. I'm saying, like dotnetspec, i like to distinguish the real from the imaginary.
I don't own anything, I should expect no respect for anything called "property." On the other hand, my actions are real. I know this because of the feedback loops and cascade effects. My intentions are real, even if I don't understand them. I know this because my actions defy physical forces; I'm not simply moved around by external pressures like a dead log.
To the extent my actions can support your intentions they create exchange value. THAT is the true basis of exchange, nothing else. Every pollinisation event in a field... a plant "wants" its pollen transported (not necessarily consciously). The plant, because its lifestyle requires a large surface area, is relatively immobile and could use a little help from a bee. It converts sunshine, water and minerals, at great expense, into nectar and advertising.
Hey, if a flower's activity results in something of value to bees, it has "earned" the ability to influence bee behavior. Not all flowers' work will be of equal value to a specific bee; relative values suggest the possibility of measurement units.
I can't possibly judge money as good or bad; it is just a tool. I can't judge the actions that led to the value measured in money as good or bad because the the effects are extremely complex and contradictory, too often both good and bad depending on the point of view. To judge another being's intentions moral or immoral, they must first be inferred from observed actions in a fully understood context: basically impossible, so I rarely bother trying. Assuming the intentions are obvious (like in the case of authority) we must then have some sort of objective ethical framework; not easy I'll grant, but whatever it is cannot be human-specific.
When the state tells me I can't use my money to communicate my likes and dislikes with whoever I want however I want, we have clear restriction of my ability to express myself. That prevents others from clearly knowing what they could do in order to maximize the meaningfulness of their lives to me. The whole, beautiful, dynamic, system is crippled. The state wants to control. I don't. I want to dance.
edit for clarity: when I use "my money" above, I mean the power I have earned to influence others through value-exchange. I know it is confusing; not the idea - the idea is clear in my head. It is my own struggle with language and words that makes the communication difficult.