>I've been thinking about the whole "public vaccination" virtue signaling that politicians have been doing.

That's not virtue signaling, or not ONLY virtue signaling - they get priority due to continuity of government laws. See https://www.rollcall.com/2020/12/13/white-house-congress-jud...

Now if they had integrity, the ones that dismissed, downplayed, ignored, refused to wear masks, etc. should have skipped their dose and given it to someone else.

>immunized publicly as a politician at the same time as your risk group

That would be nice except Congress is fairly old, average age is 57.6 in the House and 62.9 in the Senate. Not sure there are enough available doses for this to occur.