Or that is Listen's to Wind's own sense of guilt that he didn't do enough, because as some point he did step in. The guilt comes from apparently he was in the position where he had to chose who'd live and who'd die among his people. Now was it because as a medicine man he had to triage his patients? Or a bargain he made?
He explicitly says they died because he didn't intervene. He also explicitly says it's because of the principle that it's wrong for members of the Council to intervene in mortal politics. So I guess that my original statement was wrong because I said it was implied. It's explicitly stated.
I did so because my principles held that it was wrong for the Council or its members to involve itself in manipulating the politics of mortals. ... My people died for my principles.
Emphasis added. LtW didn't intervene because he was a member of the White Council, and LtW believed it was wrong for a member to intervene in mortal politics.
because as some point he did step in.
There's no evidence that he stepped in.
The guilt comes from apparently he was in the position where he had to chose who'd live and who'd die among his people.
He chose to not intervene. That's the choice he's referring to. That's the plain meaning of what he's said.