Has any philosopher ever claimed that doing "good" things is not good?
That may sound amusingly facile. And due to disagreement between what is "good" there's definitely something to say for its facility.
But, and while I don't mean it in an analytic way, I question whether it even makes sense to say that I don't think doing "good" things is good. However that is to be cashed out in political terms. Does it make sense?
I've put 'good' in quotes to suggest that I'm not asking what is good. I think I'm asking if anyone is in practice a skeptic about what they believe is good. Perhaps this question could come up in meta-ethics, I'm not sure.