@Frondeur @Griffith @LukeAlmighty @aceattorneybot @BowsacNoodle @karna Yes but cardinal utility essentially holds here. Everyone has two outcomes: "I live or I die." Because there's exactly two outcomes here, these can be quantized as "1" and "0" easily.

Sure the assumptions of Game Theory do not apply 100% of the time, but they absolutely do apply here and we should use tools that apply without crying that they don't always apply.