>"Selling something that people want isn't equal to providing value. Let me be pessimistic: coffee doesn't provide a positive value, because it's a drug that get's people addicted however little and subliminal. Maybe that is a value to society in general, but it isn't to the individual."

If you don't think someone selling you coffee that you want is providing value, then perhaps you should try make your own. Once you have to "spend" time to physically make/get yourself the good/product that you wanted, you'll quickly learn what "value" a seller provides. Technically, not the seller as much as the actual producer, but the seller provides value as well. And in most examples represents the entire supply chain.