Like for a personal parallel, it would probably be wrong to announce to a friend that you thought they were ugly, no matter how correct you were.
The sincere apology would have been to announce that his answer was incorrect - otherwise he is just trying to pacify the mob, if that makes sense. Perhaps I'm being a little pedantic, but this email has clearly been proofread by a number of people, and the key statement is definitely not as clear-cut as this HN thread seems to be deciding (it's a very clear-cut non-statement).
Edit: Criticism definitely fair, I jumped to conclusions.
I think you are reading more into this than is really there.
I'm sure you didn't mean anything by your choice of words but perhaps using "influenced by" or "derives from" would be better.
Sounds like an unambiguous repudiation of his previous answer to me.
EDIT: Just noticed geetee made the same comment. Didn't mean to steal it.
The juxtaposition of this 'right advice' with the previous 'wrong answer' should indicate to you his current position on the matter. Speech is a lossy serialization of thought. It depends on our reconstructing context.
What more do you want?
That might be one of the additional superpowers that women who don't ask for a raise have. It's good karma, it'll come back, because somebody's going to know "That's the kind of person that I want to trust. That's the kind of person that I want to really give more responsibility to."
You have to wonder why he mentions 'karma' in the first place. And the best explanation for mentioning it is that he truly believes that those who give trust will receive trust.
Note that this does not imply the converse: it doesn't mean people who do not give trust are not to be trusted. It's just his personal belief that it's good to trust 'the (people in the) system' and the problem is that his personal belief does entirely align with the message he wants to get across, at least not in the eyes of people who do not believe in karma.