I once worked on a project with a 30 person team that was completely derailed by a PM who just had to hear the sound of his own voice all day long. But that wasn't enough for him, he needed other people to watch him listen to the sound of his own voice all day long. So he called multiple hours long meetings for the entire engineering team, every day of the week. Obviously the engineering team failed to deliver the project on time due to being constantly held hostage at that PM's meetings. So the outcome was that all 30 engineers were laid off, and that PM went on to terrorize another team. It's pretty sick that the person who was responsible for the failure was rewarded with another project, while his victims lost their jobs.

Happens way too often. The worst part is, that middle management listens to said asshole, instead of the people on the team, because they hired them to relay shit through. So when someone on the team complains or outlies the useless meetings, they are forever branded "not a team player".