No housemate but the winner deserves the money really, but that's BB for you always changing the rules to fit the outcome they would like, but don't always get.
The prize money is just that, 'prize money' for the winner, it always used to be and still should be, and surely the money for their favourites, as well as the winning is what fans pay in voting for, so fans are basically being ripped off yet again. That said, it's done and dusted, so no point in worrying about it now I suppose. The good thing is the people who take the money rarely if ever win, they lose out on the winners crown no matter what, and probably have to sit and watch a housemate they disliked making the final and then winning

and that housemate 'probably' making a lot more money from winning in the longrun. So it all pans out in the end.