I think the virtues of moral expansiveness and altruistic sympathy for moral patients are really important for EAs to develop, and I think being vegan increased my stock of these virtues by reversing the “moral dulling” effect you postulate. (This paper makes the case for utilitarians to develop a set of similar virtues: https://psyarxiv.com/w52zm.) I’ve also developed a visceral disgust response to meat as a result of being vegan, which is for me probably inseparable from the motivating feeling of sympathy for animals as moral patients.
When I was a nonvegan, I underestimated the extent to which eating meat was morally dulling to me, and I suspect this is common. It was hard to know how morally dulled I was until I experienced otherwise.
I think the virtues of moral expansiveness and altruistic sympathy for moral patients are really important for EAs to develop, and I think being vegan increased my stock of these virtues by reversing the “moral dulling” effect you postulate. (This paper makes the case for utilitarians to develop a set of similar virtues: https://psyarxiv.com/w52zm.) I’ve also developed a visceral disgust response to meat as a result of being vegan, which is for me probably inseparable from the motivating feeling of sympathy for animals as moral patients.
When I was a nonvegan, I underestimated the extent to which eating meat was morally dulling to me, and I suspect this is common. It was hard to know how morally dulled I was until I experienced otherwise.