Certainly not rescuing a Dollotron girl, either. This was a girl who was being at least physically abused.
Think of it along the lines of "Well with Batman gone, I have to fill the gap the kid in the cape can't manage. How can I do that? Well, reinvent myself, and find one of those spare kids that Batman kept finding. If my best buddy is dead and gone, well then I can certainly fill in for him!"