Don't pin your hopes on it.
In fact, I think it's dangerous to think 45's grasp of reality will improve.
He might change tactics locally to avoid specific things that have caused him wounds - but he's in his 70s and has been like this all his life without changing. He's not going to have sudden realisations of anything now.
In fact, making sure he gets bruised and fails to receive adulation when he does certain actions is about the only training device anyone has over him. And don't look for transferable learning: this is more like training low-level lifeforms with stimulus–reward/punishment.