Every moral theory implicitly commits to an aggregation rule over its values.

Evidence

Creating numeric measures in complex concepts means deciding on aggregation rules and the structure of the concept. This is unavoidable. Even in purely conceptual, philosophical, and moral philosophy discussions one must take—usually implicitly—a position on concept structure (aka aggregation). For example, Kantian moral philosophy typically invokes weakest link procedures while utilitarianism allows for high levels of substitutability. — Gary Goertz, Social Science Concepts and Measurement, 110

Categorization

• DEEPTHINKING: Reframes normative ethics as a hidden choice about substitutability between goods — Kant as weakest link, utilitarianism as best shot — which is a genuinely defamiliarizing reframe of familiar doctrines.
• STORYSTEM: A fiction premise: a society whose constitution is drafted explicitly around one aggregation rule, so that all value conflicts get resolved by min, mean, or max — and the rules leak into how people love each other.