The bionic man?

I'm not saying: "Pull the plugs," but was Sharon's surgery on Shabbat really necessary? He has been in a deep coma for quite a few weeks already, with many reliable reports that he had died, and it's just the machines keeping him going, until they can find a propitious date for his death an funeral. Bets are going strong for about a week before the elections. That way the defacto PM will get lots of publicity for his election campaign.