I think it's hard to say if he acknowledges his role. He will talk about the mistakes he thinks he's made, but they arent the mistakes he actually made. He will blame himself for not recognizing the needs of another person, but he can't see how his own actions cause him the problems he deals with in the first place. Is that close enough?
This sounds like he might be struggling with a form of distorted thinking known as personalization:
"This involves attributing blame to self for an event where the responsibility is not fully yours, only partly yours or not yours at all."Would you say personalization accurately describes this aspect of your father's behavior?
It's very unfortunate that he's unable to see how his own actions cause him certain problems.
No he doesn't want help.
Why do you think he doesn't want help? Do you perhaps feel that he thinks he should be able to handle everything himself, especially since he's high functioning?