When you consider your career, unless you are a games developer, I am pretty sure Mario does not enter your thoughts all that much. However, this game (as with almost all other games really) can teach us a lot about how we can plan our careers and how businesses really need to reconsider how they handle the careers of its employees. This is not so much gamification as it is learning from games.
Games offer players a lot fo different mechanisms to understand where they are in the game, where they are going and how they are doing. All of this information is available at a glance, never more than one button press away if it is not on-screen already.