I have read up on this topic and there have been several discussions on this exact matter. Here is a link to one string that is pretty balanced. You can sarch for some of the others.
It is not necessarily a conflict of interest if there is full disclosure. That being said, it is certainly easier to just stay away from even a hint of something that may be viewed as a conflict. I would definitely want to involve the general membership if it was being considered.
Hope that helps!