Moral rationality requires consistency, which includes following the golden rule.
But moral rationality also requires other elements, like knowledge and imagination. We now need to sketch the whole picture. We're rational in our moral judgments to the extent that we're consistent, informed, imaginative, and a few more things. To be consistent includes satisfying things like ends-means consistency, conscientiousness, impartiality, the golden rule, and the formula of universal law. Imagination and a few more things 3.