Good for them. I sit at home, chug coffee and pound first and revised drafts on my trusty Mac. But it works for me. The secret is that there is no secret. There is no vault in Area 51 housing the files that will tell you how to be the next Tom Clancy.
Professionalism is an outlook, an attitude.
You should pour your heart and soul into the creation of that fiction, but don't offer your fiction the way you would your heart and soul to an aloof lover. Decide to be a professional, and you will be treated as one. Business and marketing strategies. Michelangelo got paid. Da Vinci got paid.