I agree, but most (not all) don't have the leverage needed to get what they want. The boss thinks that dumb meeting makes them look good, so why would they want to let anyone opt out? Let one do it and the rest will follow, they figure.
So really, the options are typically 1) deal with it 2) quit.
As an individual you may as well do dishes, but as a company you should believe that your meetings are actually important, and if they are, everyone should be present and video on. At least that way there will be pushback against useless meetings.