Hmmm, quite a lot of people are subject to things like pre-employment checks and references precisely so employers can weed out the kind of people who have exhibited behaviour in the past that would demonstrate that they’re not suitable for the position they’re after.
A married foreign secretary indulging in casting couch antics in his office with some random low level career climber without even locking/blocking the door doesn’t exactly scream ‘statesman’. It does, quite loudly, scream ‘corruptible’.
let’s not forget this was when he was merrily fucking over Nazanin Zaghari-Ratcliffe.