Most meetings are dreadful and a waste of time. Elon Musk has a reputation for taking care of “effective” meetings, being bold or even rude (“you have not spoken up in the last minutes - what are you doing here at this meeting?”). Never forget though: an associate easily costs the company 500.- per hour, an engineer/manager up to 1.000.- per hour. Ineffective meetings quickly waste thousands of Euros/Dollars.
Typical problems of meetings circulate around discipline (punctuality, attendance ...), facilitation (agenda, focus, ...) and egomania (self-presentation, hot air, ...). There are lots of good recommendations in the public domain about how to organize and lead meetings effectively.