The free market is morally superior because it operates on liberty  Liberty is one of the highest values human beings strive for. Liberty means that individuals ‘own’ themselves: individuals only decide for themselves what to do with their minds and bodies during their lifetime. Private property is an extension of this, because private property comes about by undertaking an activity with one’s own body or mind: when I pluck apples from a wild apple tree, they become my property through me using my own body to do the plucking. Similarly, free exchange is an extension of this, because it only comes about if both parties perceive the exchange to be beneficial to them: I will only sell the apples I plucked if I get more value in exchange than the value that continued possession of the apples gives me.  Free markets are the only system of allocating goods and wealth in society that relies on these basic notions of liberty to operate. If someone becomes rich in a free market, then that came about through free exchange: this person has provided so many goods and services of value to other people, that they gave him or her great wealth in return.  Compare this to the government redistributing wealth: that would require the government appropriating part of someone’s income via taxes. That income is private property. Appropriating private property, not voluntary exchange, amounts to theft, which means that taxes are a form of theft and therefore a significant harm to individual liberty. Free markets don’t harm liberty like this, which is why they are morally superior.