It's more like the time hogs that are the narcisists. They seem to value the sound of their own voices over the value of the time of the rest of us.

We have one in our firm. He will make his point, then go on to restate his point; not clarifying or expanding, just restating. Then he'll go back to restate his previous point and so on. His "informational" meetings run an hour for 10-15 minutes worth of information.