Proven!

Meetings are indeed almost worthless.

I personally have always considered committees as proof that human beings evolved from animals that had tails and liked to chase them. Since the shrinkage of the tail into our stunted coccyx, we were not able to engage in this behavior anymore, and had to develop a new method of doing so. Being as we were a pretty cooperative species prior to the invention of reality television, we created a system whereby we could help one another engage in an activity that was just as useless as tail-chasing: The committee meeting.