You are right, although a top-notch moral example couldn't hurt!
I agree.
Note, however, that no one is perfect (a design feature, BTW, not a flaw), and the uber-libs in the media will tear apart any person who puts forth a traditionally moral point of view as being a hypocrite simply because they aren't perfect. Yes, that plays on the theological ignorance of most of the population, but that's how they influence elections.