Paul Rubin made a great point in his Wall Street Journal op-ed (thanks to Don Boudreaux, Cafe Hayek, for pointing to it).
Economists should point out that what makes markets thrive is cooperation, while competition plays a supporting role. This might help the perception of markets. As an example:
…we might say that a poor person has been outcompeted in the market. Or we might say that a poor person cannot successfully cooperate with others because he lacks valuable skills and has little to sell.
Again, the words matter because viewing the circumstance in terms of competition could lead to penalizing those who are viewed as outcompeting him, even though they did nothing wrong. It might even lead to banning certain terms in transactions—with minimum-wage laws, for instance—that make it even more difficult for the poor person to cooperate. The cooperative metaphor, by contrast, would suggest that the solution is increasing the skills of the poor person, giving him something to sell on the market.
Unfortunately, Rubin would still need to convince many other economists that minimum wage laws make it more difficult for the poor person to cooperate.