"Free markets dissolve the concept [of fairness]."
Some would say that free markets implement the concept of fairness. Of course, there are no free markets in the world today, to a first approximation, since all the prices and outcomes are distorted by external agencies, so whether free markets are fair is a bit academic.
That is irrelevant really. You may think that the result is fair, but fair is not the reason that is the result.
The free market comes to a result based on a series of self interested decisions. At the core are the buy/sell decisions. I price in a way that maximises my profit, you buy in a way that maximises your utility.
Fair (I admit an ambiguous term) represents something external to this.
You maximize your profit as a proxy for maximizing your utility (and some people choose less profit because "helping others" boosts their utility more). Since we're both maximizing our utility in a free market, it's arguable that the outcome of our transaction is maximum fairness, or at least a local maximum of fairness.
Some would say that free markets implement the concept of fairness. Of course, there are no free markets in the world today, to a first approximation, since all the prices and outcomes are distorted by external agencies, so whether free markets are fair is a bit academic.