I agree with inflictus here.
What do you mean by 'behavour and morality'? It sounds as though you're defining it very narrowly to a sexual context. Some of the most liberal and visionary politicians would have failed the sexual morality test, JFK and Martin Luther King to name but two! But Adolf Hitler was faithful to Eva Braun, so fine.
I agree that leaders need to be morally decent people, but I'm not interested in what goes on in their bedrooms - only in the way they behave in the wider world, and as inflictus has said, KC has a great track record - and he stuck his head above the parapet and got mocked for being a crank long before the majority view came round to the wisdom of what he was saying.
What on earth has KC's previous messy and regrettable marriage got to do with anything now? He even publicly did penance for his behaviour, both on Jonathan Dimbleby's interview and at his wedding to Camilla. What more do you want him to do?