Do these norms keep people of bad character from ascending to high office? Not at all. Hypocrites and demagogues have always been with us. What every generation of Americans have recognized until now, though, is that there is a marked difference between some leaders not living up to the character expected of them and leaders operating in a space where there aren’t expectations of personal character. You might hire an accountant to do your taxes, only later to find that he’s a tax fraud and an embezzler. That’s quite different from hiring an open fraud because you’ve concluded that only chumps obey the tax laws.
That’s because no leader of any community, association, or nation is an abstract collection of policies. We select leaders to make decisions about matters that haven’t happened yet, or that might not even be contemplated. A dentist who screams profanities at opponents and promises a practice built around “revenge and retribution” and the tearing down of all the norms of modern dentistry is not someone you should trust with a drill in your mouth. How much more so when it comes to entrusting a person with nuclear codes.