Perhaps the most frustrating part of this all is that if the situation continues for long enough, lateral violence often starts happening - nobody can hold the dude at the top accountable, therefore people start trying to hold *each other* accountable, even if nobody involved in those conflicts actually has the power to do anything about it
I would encourage you to identify who the tech dude is in *your* FOSS community with a governance problem, and start drawing more attention to their role in the issue