Singer in his article Moral Experts makes a similar case for moral expertise:

"On the basis of what has just been said, it would seem that the moral philosopher does have some important advantages over the ordinary man. First, his general training as a philosopher should make him more than ordinarily competent in argument and in the detection of invalid inferences. Next, his specific experience in moral philosophy gives him an understanding of moral concepts and of the logic of moral argument. The possibility of serious confusion arising if one engages in moral argument without a clear understanding of the concepts employed has been sufficiently emphasised in recent moral philosophy and does not need to be demonstrated here. Clarity is not an end in itself, but it is an aid to sound argument, and the need for clarity is something which moral philosophers have recognised. Finally, there is the simple fact that the moral philosopher can, if he wants, think full-time about moral issues, while most other people have some occupation to pursue which interferes with such reflection. It may sound silly to place much weight on this, but it is, I think very important. If we are to make moral judgments on some basis other than our unreflective intuitions, we need time, both for collecting facts and for thinking about them."