Walt at least starts out with noble sounding goals motivated by pride. The show lets the mask fall so slowly on what he really is the viewer will probably have

Walt at least starts out with noble sounding goals motivated by pride. The show lets the mask fall so slowly on what he really is the viewer will probably have a hard time letting go of the initial appearance, especially if you identified with it personally. But even half way through the show you'd have to be deluding yourself if you still thought he was a good person, and by the end he's explicit about what a monster he always actually was.