I see. [ If it is a matter of "what would Cornelia have me do?", the option should be obvious at this point. Not to mention that it is even less of a matter than it might be if Lelouch were actually still in the prison. As he is gone and whatever influence he has over this place and the people within it left with him...
Though Guilford isn't ignorant to the draw of strong leadership and the long lasting effects thereof, he can still take some small measure of comfort in that fact and it is that which quells his more obvious signs of anxiety. ] There are many things that can no longer be changed.