 There is a related objection using ‘unfair’ instead of ‘wrong’. Suppose, following our previous discussion in  section 3,  we agree that contractualism allows ‘because it treats me unfairly’ to count as a reason for rejecting a principle. We then face the challenge that our judgments of unfairness are doing all the real moral work, as contractualism now says that a principle is wrong if and only if it treats someone unfairly.