Does 'the top job' involve sacrifices?

Yes it was C's wife, but I changed it. Let's get the caesar bit first before we start worrying about spouses. (unless they are buying porn films on MP's expenses...)

I thought it was Caesar's wife who had to be beyond suspicion, which always seemed a bit unfair to me.

I see the supremo of the US armed forces has resigned because he had an affair. If everybody who had an affair had to resign..............I suppose it could have made him vulnerable to blackmail.

Head of the CIA resigned this week when the FBI found out he was having an affair. In certain jobs caesar has to be beyond suspicion. Our mayor for instance is living with the head of planning for the council. There came a point where they had to go public. And once she has finished being mayor and reverts to being a normal councillor, she will have to be very careful about the decisions she is involved in. That sort of thing is one of the downsides of public life and most people understand that there are boundaries that must be maintained.
So what is the right thing to do, when you become leader of a political party, let alone PM? Review your social life and ask yourself where are the potential pitfalls, conflicts of interest, places where you might be accused of being too matey. And say to those friends: - While i am in that job we will have to maintain a professional distance. Hope one day that we will be able to be close friends again.
The alternative plan is to review your list of "best friends who I went to school with" and give them jobs.

I thought you were going to comment on George Entwistle leaving the beeb greatnan
The short answer is yes it jolly well does!

Perhaps when we first started texting we imagined that those texts were private and would never be in the public domain. maybe we will all revert to letters which can be used to light the fire after you've read them.

Those in public life do have to careful about their friendships - look what happened to John Profumo.

I think he needed to be far more sensible....not so much put his friendships on hold but agree not to discuss anything of any importance.