“Mills said, “It is only when a community feels safe that they allow their children to go to school. And it is only when we have crossed another level in their confidence that they allow their girls to go to school.”
In this case, I would add that the decision of taking such metric is a cultural one. The background of locals, their social structure provided Mills a better / wiser reference point in his overall strategy.
To me, the question “Are two lives saved twice as good as one life saved?” is subjective and personal.