James, I disagree with what you are saying for the following reasons:
If people were to react to what they are fed all the time, Jade or
Alex would have won.
As far as C4 getting their own back on Sandy for not turning up, I think he burned his bridges when he peed in the bucket. Other housemates were bound to find out, and I think that he would have been completely ostracised, if not thumped!
I know TV can be exploitative, and I know that C4 did push the program in that direction, but I feel no sadness for Sandy. Peeing in the dustbin was not "dirty" as in peeing up the wall when you are drunk and can't find a toilet. It was premeditated, as an act of violence, aimed at housemates he didn't like. He did it in front of cameras, in full view.
Therefore, whatever C4's motives, he deserves everything he gets. I hope he gets the sack from his job as well. I certainly would not want him selling me anything!