It is definitely a skill that the meeting runner needs to have. You don't need to keep it completely choked off but you do need the ability to call a spade, a spade. When someone is just repeating someone else to kiss up, then they can move the conversation along.
We have someone who always brings up some story about some company he worked at 20 years ago and blah, blah, blah. But it isn't a "We solved this at company X by doing Y, should we try that here?", it is more like a 15 minute chest pounding of "Back when I ran the largest logistics company providing dental products to all the Fortune 500 and the government, I was in charge of 5K employees. When we faced challenge X,...... blah blah blah". This is where someone needs to step in. Again, most people don't want to be the jerk and so everyone sits there listening to this person talk about himself and wasting everyone's time.