Not GP, but I once asked my engineering colleagues if I was the only one who doesn't pay attention in the bi-weekly all-hands because most of the information is irrelevant to me (e.g. what new marketing strategies we're using). Some admitted that they would do some work on the side, but some also said "well, those people also want to have a chance to share what they did".
I found this remark puzzling and illuminating at the same time. Apparently, for some people, meetings aren't about productivity but about satisfying psychological needs.