Did you not watch skylar and Walts final scene knee growI don't understand why it's so difficult for some of you to grasp this ending the ENTIRE reason for Walt doing what he did was for his family. His only goal was the financial security of his family and along the way he decided he actually liked doing this. Killing the Nazis wasn't about the money it was revenge for Hank, forcing Gretchen and dude to give Flynn the money was again revenge for them slighting his contributions to Grey Matter. He did it all for his fam.