I read that a photoman that photo the Kentucy horse race shoot  both raw and jpeg. This is so he can sent the winning horse jpegs to the papers and magizines. They have a time table to keep. The raw he use for people who wish to buy his photos. I think he shoots over 700 photos a race. He sells a lot of photos at the races.
that the only reason i see for shooting in both.  
Wish I can shoot in raw. will do it one day.

what you see is not what you know; it in your face