11-3.5 There is no universal utility. Utility doesn't exist in the abstract, it must be rooted in the context and corresponding explanations.

Ceteris paribus—All other things being equal.

3-1d5 You can question the adequacy of the tools at hand insofar as it relates to some specific problems of yours. You don’t evaluate them ‘comparatively’ based on its ‘utility’ without explanations.
5-1b1a8 ‘Opportunity cost’ and ‘comparative advantage’ must be rooted in explanations. Never use them as ad hoc criteria.