Lucy Fleming actually narrates one of Ian Fleming's short stories in the James Bond Reloaded series of Audio CDs, namely that curiosity "007 In New York", which is found on the CD "Octopussy & The Living Daylights". She was the producer of those CDs, and has a background in theatre and television acting, which I suppose would explain her involvement as a narrator. I get the impression she's actually rather proud of her Uncle Ian and what he did.
As for Ian Fleming's wife, Anne, I think some of her attitude towards her husband's writing came from the intellectual circles she moved in. Bankers might well read Fleming or similar for diversion - I've worked in two different professions, law and teaching, and on the side I am involved in local politics,but I'm quite open about being a Bond fan and nobody looks down on me for it. (Actually friends look to me rather than down on me, when it's pub quiz time and a Bond question comes up!) Whereas some of the people Anne mingled with wouldn't have been seen dead reading Bond.
Incidentally, bankers may be educated, but there's a difference between that and being wise - how else to explain the 2008 banking collapse? (Unless, er, SPECTRE was behind it all. I guess we might find out this November )