Perhaps more importantly though, believing things have objective value often leads to very real errors in the evaluation of particular circumstances.
You believe that you have no errors if you completely evaluate every thing ONLY from the perspective of subjective value? I am not even denying the existence of subjective value, and I may even be willing to concede that a large portion of value (perhaps even an overwhelming majority) comes from various ways of considering subjective value, yet I am not willing to concede that 100% of value comes from subjective value... ..
but isnt bitcoin a prime example of a purely artificially priced thing in action? as a private key or tx is just a number.. no value on its own at all. and after all the btc price is.. the btc price. no distractions of some secondary value interfering with price discovery,