Not so much the Peter Principle ...

... as the parachuted-in, non-comp DEI hire.  Firstly, this is the Peter Principle itself in a nutshell:

This below, on the other hand, is a parachuted-in, non-comp DEI hire ... in a similar way to Reeves being incompetent at her job and of zero business experience. Yes, there are many non-comp men too - Brown, Starmer etc. - but the one below is of one the other 289 genders, the one which procreates:

Others have commented as well:

Another way to express it is "politically acceptable to communists".