I suppose I am not the only one to notice this, but I was impressed by how close it was.
Ra's al Ghul, given the gift of immortality by the Lazarus Pit, started out as a righteous vigilante in pursuit of justice. But he slowly started losing his mind due to his immortality, and began to regard mortals as evil cattle fit to be destroyed and replaced with superior virtuous creatures. His League of Assassins was formed to serve as fellow instruments to his cause, with them too receiving the same gifts if loyal. When his daughter and League member, Talia al-Ghul finds a saviour in Bruce "The Detective" Wayne, Ra's al Ghul requests The Detective to become a part of his little empire and serve his cause. But The Detective, if tempted to be part of his cause, is a little disturbed by the Demon's Head, as is his daughter Talia al Ghul.
Harkon Valkihar, given the gift of immortality by the Molag Bal, started out as a righteous vigilante in pursuit of justice. But he slowly started losing his mind due to his immortality, and began to regard mortals as evil cattle fit to be destroyed and replaced with superior virtuous creatures. His House Valkihar was formed to serve as fellow instruments to his cause, with them too receiving the same gifts if loyal. When his daughter and House member, Serana Valkihar, finds a saviour in the Aspect of Akatosh, Ra's al Ghul requests The Dovahkiin to become a part of his little empire and serve his cause. But The Dovahkiin, if tempted to be part of his cause, is a little disturbed by the Servant of Molag Bal, as is his daughter Serana Valkihar.