In any case, be it personal or interpersonal morality, it is more efficient to agree on a single goal and then optimize towards it. The power of optimization is in driving the environment in the same direction, multiplying the effect with each interaction. For personal morality, it means figuring out morality more accurately than you needed before, perhaps more accurately than is possible from mere intuition and argument, and in particular balancing the influences of conflicting drives. For interpersonal morality, it means agreeing on global target, even if it’s suboptimal for each party considered separately.
In any case, be it personal or interpersonal morality, it is more efficient to agree on a single goal and then optimize towards it. The power of optimization is in driving the environment in the same direction, multiplying the effect with each interaction. For personal morality, it means figuring out morality more accurately than you needed before, perhaps more accurately than is possible from mere intuition and argument, and in particular balancing the influences of conflicting drives. For interpersonal morality, it means agreeing on global target, even if it’s suboptimal for each party considered separately.