It's psychobabble, and George W. Bush babbles far less than the average Joe. He's not interested in his own legacy, nor his father's. He's interested in doing the right thing, and he's doing it.
He loves his father, and his father loves him, and this incessant analysis of their relationship from people who have no idea what's going on inside either of their heads.......no matter what his/her previous role was........ is wearisome, and most likely wrong.