While we do see cases where papers include e.g. principal investigators who just got the funding or the supervisors of the grad students who did the actual expe

While we do see cases where papers include e.g. principal investigators who just got the funding or the supervisors of the grad students who did the actual experiments, adding random politicians with no connection to the studies is IMHO exceptionally rare, mostly because politicians have less direct power to force their country's scientists to do it publicly and keep their mouths shut - instead we're seeing plagiarism cases exposed, like the recent German case of (should-not-be-a-)Dr. Giffey and the earlier scandal of (not-anymore-a-Dr.) zu Guttenberg, and a bunch of others. However, I'm not really implying a qualitative difference - I'd fully agree that anyone in the capitalist west who has "made" all their publications by somehow arranging to be included in the authors' list should be considered not as scientists but as frauds, just like Ms. Ceausescu.