Abstract

How much should someone contribute to trying to prevent unnecessary deaths and severe hardships? MacAskill, Mogensen, and Ord propose tithing for most of the rich (as measured by income), which has been influential in the effective altruism community. My aim in this article is to contribute, through amending their proposal, to their important project of searching for a weak or very weak principle of sacrifice that would still revise upward how much money goes to the most effective organizations. I do so by presenting four objections to their argument based on demandingness, fairness, net wealth, and historical and contemporary injustices. Then, I show that a principle of progressive can overcome these objections and better fits the reasons MacAskill, Mogensen, and Ord give in favour of their principle than their proposed operationalization of tithing.