"It is a cliche in our business that the first 90 percent of the work is easy, the second 90 percent wears you down, and the last 90 percent - the attention to detail - makes a good product."
I've had the good fortune to work for a group of people who are exactly like that. There was an extreme dedication, not because they were forced to, but because they were really addicts in a very real sense. I've personally seen what the last 90 percent could do to a product. It really makes a world of difference. Once you've seen an example, you will immediately adopt the addict mindset and start chasing for that euphoria that comes after you've finally finished the last 90 percent. Once you've done it once, you are likely to do it again, and in the process, lead by example and inspire more addicts.