We call him "Mike" because "MICHAEL LOVE NOT WAR" just doesn't work on that (in)famous T-shirt.
But it's way too late for him to be known as Michael to the general public.
He's always been a bit of a "climber" but as he's gotten older his give-back has become more focused and more principled. Some of the credit for that should go to Jacqueline, of course; we should not discount her influence on him in what has easily been his most stable, equal, and enduring marriage.