This is completely counter to a lot of corporate cultures, but it's true; every wasted meeting, every unread email, etc, is a time wasting suck created to further the goal of "communication", without realizing that isn't a worthwhile goal.
In real life, management shows that their time is packed with meetings while pushing actual production down to reports (who must attend all the meetings + do all the production).
There are very few managers who defend their report's time as precious.
For example, what's a better use of everyone's time: a scrum meeting where everyone sits there and sits like 5 year olds waiting to have their turn at talking about what they want to do today and what they did yesterday, or a slack channel where everyone types the same thing they would have said anyway and then meets if there's something that needs to be discussed?