Well, we often talk about morality in terms of our emotional and physical response - e.g. revulsion ('disgusting behaviour'), fear ('recoiling in horror') and p

Well, we often talk about morality in terms of our emotional and physical response - e.g. revulsion ('disgusting behaviour'), fear ('recoiling in horror') and pain ('pangs of conscience'), etc. It's also pretty difficult to determine whether Wiener's detestation of suffering was the cause of his moral stance or vice versa. I would argue that whatever the associated reaction/cause, the outcome is a moral stance as it influenced his decisions based on the consequences his actions might have on other people. OTOH, if Wiener felt bad about other people's suffering but it didn't affect his choices, it wouldn't be a moral stance.