You'd expect Pastors or Ethicists to be more moral/ethical because they spend a lot of time thinking about being moral/ethical compared to members of the general population. Seems pretty intuitive to me.
I'd expect ethicists to have thought more about ethics and morals. I wouldn't necessarily expect them to be more moral or ethical. As C. S. Lewis says in The Abolition of Man, it's not theorems that make the difference when the chips are down.
Pastors... it depends on the pastor. Is it a job, or something they actually believe? Is it just a theory to them, or do they have any actual power helping them live it out?
Ok, so imagine that everyone has the about the same propensity to make the correct ethical decision when faced with a circumstance. You might expect there to be some number of circumstances for which the lay person may be wrong about the appropriate ethical decision and thus fail to make it correctly, whereas the ethicist would be better prepared for such. If this were the case, then you'd expect ethicists to be more ethical despite having the same ethical character as regular people.
In fact, on this interpretation, if we find ethicists are no more ethical, then we must conclude they are actually _less_ ethical than normal people, since they have more occasions where they could make an ethical decision but do not. Or we have to admit that most ethical quandaries are trivial, so that being an ethicists doesn't give you any special advantage.
You'd expect Pastors or Ethicists to be more moral/ethical because they spend a lot of time thinking about being moral/ethical compared to members of the general population. Seems pretty intuitive to me.