Who is Dr. Igor from Veronika Decides to Die and what is their importance?

Dr. Igor is the chief doctor and administrator at Villete. He is depicted as the most complex of the characters in the novel, and he is driven by a variety of motives and hamstrung by a variety of circumstances. In the book's final chapter, he is portrayed as a kind of selfish monster. We also the sense, however, that his patients have ultimately been transformed for the better as a direct result of his actions. Igor is in fact, and perhaps unbeknownst to himself, a good man doing the right thing for the wrong reasons.