You want to be "world class" and this is your work ethic.
It's not so necessary for getting a good job in my experience. Again, I got a fairly good job by winging it at their interview, I graduated college (which was a top college) again while putting in less than an hour each day and skipping all of my classes because I preferred to teach myself, and because I kind of disliked the study material. I see most smart people getting into jobs without working too hard. Even at jobs, if they are smart enough, they can afford to be lazy.
So instead, in real life, I lie about how much I work, and the results "speak for themselves" so people are none the wiser.
