Dirty hands hold dirty ballots
It's unfair to expect that candidates reflect higher personal qualities than does the public.
That's the talk of the times: politics, how dirty it is. Amir Peretz deserted? Yuck. Dan Meridor was removed? Blah. The sub-text: we are good and successful, and it's just our politicians, oh those dirty politicians, who mess things up; the chosen people complains about its representatives.