Completely agree about it being pointless.
As well as being told he's the winner he's likely to earn more than £20k after the show with mag interviews, "celeb" guest appearances, etc. the longer he stays in.
Now what would have been interesting is having the person with the least votes being offered the car + reduction in winners fee.
Go and you get the car, stay and you might win a few fans and extend your stay beyond a week..