If you were able to choose to live your life anyway you wanted to, would you take the opportunity to become a notorious criminal slaying away at helpless innocents? Perhaps the appeal of being a working family man would be more along the lines of what you would want out of life? While it may seem more of the same that you experienced in the original Fable, Fable II brings additional depth into showing the actual consequences of a player's actions; delivering on the original promise of the first game. For example, giving a certain criminal a number of arrest warrants in the beginning of the game affects the town later on, as it becomes a slum rather than a middle-class neighborhood.
It's this new little attention to the details that brings the world of Albion much more to life than its previous iteration.