Comment by westoncb

This is an interesting additional aspect to the situation. I wouldn't deny at all that what you're describing happens, but whether it's a problem or a solution is debatable imo ;) Is it always better to have an enforced equality of priority among speakers, or do these emergent hierarchies serve as effective regulators of group communication?

However, I'd also argue that in most cases these social group hierarchical roles aren't going to end up having a large influence on communication style: typically it's only if there's something pressing going on. (Or, as I've already described elsewhere, if someone is unfairly taking advantage, the negation of which is a condition for cooperative interrupting to work.)