It is sufficient to construct one plausible version of contractualism on which optimific principles cannot reasonably be rejected to establish non-conflict

Despite its provocative claims, the convergence argument is, in one respect, quite modest. It does not set out to prove that rule consequentialism, Kantian ethics and contractualism necessarily coincide. Rather, the conclusion is merely that plausible versions of the three theories do not necessarily conflict. For this modest purpose, it would be sufficient to construct one plausible version of contractualism on which the optimific principles cannot reasonably be rejected.