personally, I'm agreeing with Buffalo and, to a lesser extent, Kraco. Setsuna certainly feels that this effort is worthwhile, that it might make the world a better place, but I think he feels 'picked by the hand of God' (this time appearing in the form of a Gundam) to fill this role. However, this makes him accountable to his private convictions, not people like Sumeragi and Tieria. Because he's survived so much, he feels that he can, and should, base his actions off of what has gotten him through life so far.