Value mightn't be flawed without the 'evaluator' being flawed too. Yet a flawed value might be exploitable for other parties; so for in whatever exchange that at first glance seems to be a pure p2p exchange(private), the value of the object that persons A and B are trying to evaluate each for themselves, are at the same time subjects to the perceptual value of their respective counterpart (making it a public value).

At essence, a transaction might be an exercise of both delimitation and comparison; and I'd argue that amounts of self reflection are necessary as well as objective ways of valuate value...