Yeah this is one of my biggest questions from a lot of the high profile departures during the Trump admin early days (both times probably). Sure, you save face a little maybe, and you register your protest, but then you are replaced with a yes man almost certainly, which is significantly worse.

But also, then, I know exactly how I would feel about continuing to work if my purpose is now to just be a roadblock. It must be pretty demoralizing and can you really ask that of someone else or be upset if they aren't up for that? I would certainly be tempted to jump ship for a chance to get paid better doing something I enjoy.