This excellent discussion of justice grounded in rights, and rights being “what respect for worth requires,” closely links up with the equitable “distribution of [economic] benefits.”
Economic efficiency can actually be a strong ally for justice, especially for the poor. In a world of scarce resources and great need, good stewardship requires us to be efficient so that nothing is wasted.
Current anti-trade attitudes might change if we showed respect for the worth of people in other countries and desired their flourishing as well as our own.