That is not a story we're going to address in The General. Some people have asked that I blow-up his point of view into a story of its own. I've done so many writing exercises to try to get into this man's head that I have a fair amount of stuff to work with. It'd still be a rather large undertaking.
The short answer to your question: Micheal Carl Pipkin did what he had to do to survive. Found out he was pretty good at it and, honestly, he got a little warped along the way. But nearly losing one's life- be it to a bullet or to cancer- has a way of opening your eyes and changing your priorities. Sarah's presence does have an influence on him, whether he wants to admit it or not. And believe me, he doesn't want to admit it. He's a man's man. A stand on your own, I'm an island kind of man.
And by the time he recognizes all Sarah offeres him . . . hmmmm, I don't want to spoil anything but let's just say that its awfully hard to be satified with an apple when another man has the feast . . .