1. Interpretive Charity
This is Jeffrey Friedman’s term. I think that it means trying to understand someone else’s point of view before criticizing it. It means trying to set up the strongest case for the opposing point of view for counter-argument, rather than attacking a weak or straw-man version of the opposing point of view. In Bryan Caplan’s terminology, try to pass an ideological Turing test before you engage in debate.
2. Asymmetric insight
This is David McRaney’s term. It is close to the opposite of interpretive charity. It means taking the view that you understand the other side’s true motives, which they themselves do not understand.
Pete Boettke would say that public choice theory is symmetric, in that it takes people to operate under the same incentives in politics as in the market. But that is a different meaning of “symmetric.”
Many people would deny that their political motives are dominated by the pursuit of material advantage. Thus, when you claim that they are pursuing material advantage, you are claiming to have insight into their motives that they lack. That is asymmetric insight, and it is the opposite of interpretive charity. Of course, on occasion asymmetric insight is accurate and interpretive charity is too kind.
A commenter points to a passage from Dan Klein.
We just need to make clear that when we offer a description based on assumptions of self-seeking behavior, we present the description as one, simplified description of the matter, and not the one that the political participants themselves believe.
Describing behavior in ways that participants themselves do not believe is uncharitable–although, again, it might turn out to be correct. Medical professionals genuinely believe that licensing requirements protect the public. It is the economist’s task to show that this is incorrect the net effect on the public is negative, regardless of motive. Trying to ascribe self-seeking motives to the medical professionals is at best beside the point and at worst uncharitable.
Finally, let me return to the idea of interpreting “self-interest” broadly, so that it need not be limited to material advantage. . A man sacrifices his life to defend his country? Well, he had an interest in acting honorably. A man advocates for a policy that hurts his own business? Well, he had an interest in being well thought of.
If there is no limit to the breadth of your definition, then “people act in their self-interest” is a tautology. It is always true, and that makes the statement uninteresting. If you want to make an interesting statement, you have to take the risk that your statement will be false. Saying that people make choices to try to maximize material advantage is an interesting statement. It risks being false, and indeed it often is false. However, it is true in so many contexts that it is quite useful.