Seems to me that value is just a perception, like any other perception. You can choose to perceive value or not. I think the startup phase titled, "Educating the Market" is a euphemism for, "Persuading other people to agree with you."
In the end when dealing person to person, (or business to consumer, b2b, its the same thing) its all just persuasion. Just persuading someone to give you money for something you've persuaded them gives them value. And if you're persuasive enough, they'll agree that it is valuable, convince themselves accordingly and be happy.
Its much more apparent when you convince yourself that you really need very few things in life to get by, and that most of what it takes comes from inside yourself (except for food, water & shelter).