Also there are plenty of examples where public pressure changed things.
Recently investigations and 'public outrage' over the Duchy of Cornwall charging NHS organisations, charities and Scout groups led to changes being made. That's exactly what happens when people refuse to stay quiet and decide something matters enough to speak up about.
And while we're talking about public outrage, we still haven't seen the Royal Family apologise for the way Virginia Giuffre was publicly discredited and dismissed for years.
Powerful institution closing ranks when allegations are made, yet people still defend it and those who are part of it.