There is also a lot of evidence this happens a lot. Think of all the groups that get their start in the UK. They can do that because one doesn't have to hit the ground running.
BTW, I was wrong earlier when I wrote on the Tumblr that she said she would never have been able to write Harry Potter series if she hadn't spent the years on welfare. She actually said she wouldn't have been able to write her new book if she hadn't lived on welfare.
But working in near slave labor conditions in China, I'm sure would have destroyed her ability to be creative and that would have been awful, like it is awful for the workers in that Romney paradise.