At the end of the day....
...was it really fraud? Doesn't this happen all the time?
I mean that other people do the work while another person takes the credit, seems to be basic procedure.
Keane basically sold a product and he did that pretty successfully. Probably w/o him, Margaret wouldn't have had the huge commercial success.
Walt Disney's name is written on all Disney products(movies, comics, merchandise) and he never drew one single drawing.
Burton of all people knows this. He used to be one of the people who did the art with Disney's signature on it.