It took some growing up on my part to realize the fundamental value in "If you do something, do it well".
I used to be very much in favor of "getting by" and a "good enough is good enough" mentally. After all, it's the rational point of view. Why work more, if you can work less? But the truth of the matter is that once you put your entire being into something, you immediately find value in it. Anything you do fully, however menial, magically becomes worthwhile and fills you with a sense of pride and accomplishment.
Atleast that's my experience. If you want a random person's advice, I'd say try it out and see for yourself.