Two words: Tom Clancy. The man came from nowhere, actually sold The Hunt For Red October (unrepresented I believe) to the Naval Institute Press, which is not a fiction house, and went on to be one of the most successful authors ever, with movies and video game tie ins all over the place. Yeah, it's possible.
Agree - Clancy is the living proof - look at all the things he has accomplished! EOD
I like Rowling's attitude - she seems a no-nonsense kind of person and has donated a great deal of her financial prosperity to charities. Her life story is one which sets a fantastic example to people from all walks of life that you can "win" your personal lottery if you find your goal and aim high. It isn't always a goal of money either - but the desperate need within to accomplish a task which gives inner satisfaction. It's what life is all about.
I also like that she said to an interviewer once about writing the Potter books in English only. She warned the French and Danish children - "they better get on with learning English".... of course this was before the collection was translated on a global basis.
Ever the teacher talking to the kids however - she has earned her fame and how lucky we are to have been able to share her great gift!