You've probably heard this rant before, from lots of other people. A lot of the time I bump into "Non-Overlapping Magisteria," someone says something that almost sounds reasonable: Leave science (what is) up to the scientists to figure out. Leave ethics (what should be) to other people. The big problem comes at the end of the sentence, when they assign a rather bizarre group to be the "other people."
Why are priests, ministers, clerics, clergy, witch doctors, and those guys with the e-meters considered experts on morality? I haven't seen any evidence to suggest that they're more moral than the average person, and often evidence that strongly suggests the opposite. Of course, some fundie'll cry out at this point that they're more 'in touch' with whatever deity, in which case, they're moving into science: If deities exist and have effects, it's a scientific question.
About the only positive experience I can recall right now involving a minister was one that included Star Trek in his sermon, talking about the nature of sacrifice: That of Spock in Star Trek II: The Wrath of Khan. Real sacrifice, not the fake, planned kind. Of course, Spock came back through unplanned use of phlebotinum, but no one was expecting it. I'm glad he didn't make a comparison, because Spock is much cooler than Jesus. Even if Jesus could allegedly do ninja water walking.
Anyway, back to the point: I see nothing connecting superstition authorities with morality. If I had to pick an authority, I'd go for someone who had to take a lot of college courses about the various ethical theories out there. If some conundrum came up, he'd at least be able to talk about details, rather than just say 'God said that's a no-no.'
Moving onto my perceptions of priests and such: I think I trust used car salesmen more. The only place I ever see admirable preachers is on television. The fictional kind of television, that is, not news programs. On the news, they're the villains with strangely good PR as the anchors will often suck up to them or parrot apologia for their actions without putting those actions back into the real context they typically provided less than a week before.
I'm again glad I watch The Daily Show. They're willing to replay original clips and engage in actual criticism.
Put simply, I've seen enough nasty preachers and too few good ones that I viscerally place preachers lower than the average human, unless I have prior information about their individual character.