Those of us who support liberty, limited government, and rule of law will never prevail in the public arena until we can compellingly make the case that free markets and voluntary exchange are inherently fairer than alternative forms of social organization. Proving that economic freedom leads to higher living standards and greater personal liberty is not nearly so persuasive as proving that it is morally superior. Interventionists make their case for social controls and income redistribution based on the unfairness of outcomes such as differences in income, education, and wealth.
Most people find that argument persuasive.
Our response to the interventionist's claim of unfairness should be that results cannot possibly determine fairness. Here's one way to think about it. The Chicago Bulls have won the NBA championship six times in the last eight years. There are 20 teams in the league. The answer is no.