Many of her colleagues think that she has another motive: vanity. Stella Rimington used to be a very important person. Now she isnt. Its painful and she just wants to be back in the limelight.
But on the other hand there are no reasons to worry about. Stella Rimington was a brilliant woman, so we will remember her forever.
Besides, not long afterwards, she was immortalized as James Bonds new boss in Golden eye. James Bond worked, of course, for MI6, not MI5, but everyone assumed that Dame Judi Dench, who starred in the role, was playing Stella Rimington - including Dame Stella herself who found the portrayal "quite startling”.