The standard of consent I use is informed consent. This protects people who are hoodwinked or defrauded in a system where consent is the standard and contract law is the Supreme law of the land. 

People who exploit others are not acting in a moral capacity and will, eventually, be exposed, and, in a freer system, exposed faster. This is the beauty of things like BTC and nostr. They cut out everything that isn't consentual, and are therefore, IMO, some of the best devised means of consentual transmission of ideas and value.