Yes, happens all the time. Not too much wrong with that - life's not always as fair as it should be.
However Mr Yates contends that he "had absolutely nothing to do with Ms Wallace's job application. He was merely acting as a postbox". Yeah, right. I wonder how often an Assistant Commissioner "acts as a postbox" or why it was necessary on this occasion. And like you lyn, I wonder who in Scotland Yard’s HR department would look unfavourably on a job application where the applicant’s CV had a “few notes” penned on it by the Yard’s second in command. (I wonder what he found necessary to pen. I'm guessing something like "make sure this gets approved").
It’s a shame because Mr Yates was a fine copper. But his involvement with Neil Wallace (whom he describes as “an old mate”) has put paid to a fine career.