"Speaking out" is an overused pandering tactic.The narrative matters, and yes we need people with the farthest reaching voices to speak out.
I judge it case by case.
For example; I don't want to see a billionaire "speaking out" about world hunger when they got enough bread to feed a small city for a year straight.
There's been just as many people "speaking out" when we lost Tray, Mike, Mr. Garner, Tamir, etc. and nothing's change
These rich/powerful need to do more than that