I know people who have worked in Propriety & Ethics, and maybe a few who still do, and I think they'll be surprised to discover in the Times that they are Whitehall's equivalent of Nixon's "plumbers", who get to go around doing cool stuff like cracking safes and shredding confidential reports. Bonus points to the Times for calling them a "shadowy" unit.
It sounds a lot more exciting than "Simon McDonald has written a memoir and he's got a section in it about this dreadful pushy woman he used to work with, and he doesn't name any names but everyone will know who it is"
In reality, 90% of what they do is answering queries from departments saying "we'd like to appoint Sir Bufton Tufton as chair of Great British Widgets, do you think there's a conflict of interest" and the rest is producing reports for the PM saying "we regret to tell you that Peter Mandelson is a bit dodgy and scandal prone, are you sure you really want to appoint him"
Ian Fleming used to occasionally put a scene in his James Bond novels where Bond was doing his desk job at MI6, and I sometimes think you could get a good Reggie Perrin style comedy about Bond spending all day in his office getting emails from M reminding him of the service's sexual harassment policy, and telling him that Cabinet Office guidelines require him to work in the office at least three days a week, and that under the expenses policy the next time he goes on a mission he'll have to stay in Travelodge.