Logical reasoning (for whatever that is worth to a religious person) can certainly be used to grant such professionals a higher credibility, and this argument has nothing with education, but rather motive.
I wonder where did you get that. How do you back that up? It's juts curiosity. How do you conclude that? I am honestly inquiring, not confronting.
With regards to my comment implying that religious people don't value logic, I suppose it is based primarily on my own somewhat extensive experience dealing with them, seeing that I live in the South Eastern United States I deal with many more religious people than just JWs. Though perhaps they are not all like that, it's just how most of my experiences go with them. Additionally, I personally have not been able to find a logical reason to believe in a personal creator when this individual has not deigned to speak directly with a large group of people in 3,500 years. (And that event is only recorded in a single source and may have been written long after the day it is supposed to have happened, so who knows if it really even did happen at all?) I recognize that personal experience isn't the strongest basis on which to build an argument, but it is all I have in this case.
If you meant, "How did I conclude that professionals deserve a higher regard in terms of credibility?" That was the topic of the paragraph following that sentence. I'll try and clarify my point though. What does the scientific community as a whole have to gain by purposefully skewing evidence against the Bible? As far as I can tell they would gain nothing by doing that. In fact they would be setting themselves up for a tremendous failure when they were proved wrong. On the other hand, the religious community as a whole does have a motive to only point out the evidence that supports their view. It allows them to appear open-minded, when in fact anything that conflicts with the beliefs they already hold is simply discarded, no matter how much evidence there is or how large the consensus view of that evidence.