Kilgore Trout
Misanthropic Humanist
That's a rather simplistic calculation. Clinton was being persecuted for his personal sex life, which is nobody's business, IMO. Nixon was caught breaking federal law to advance his political prospects. I know it's a feather in the GOP's cap to have pulled it off with Clinton, but to must of the world and much of the US, it made the GOP look worse than him. The prospect of ending up in court being vigorously questioned about who you had sex with, and when, and how, is one of the reasons people are not comfortable voting for Republicans.
In France, a politician's popularity rises when he's found out to have a mistress. Not that that should be an ideal to strive for. However, I'd take it over ridiculous, political witch-hunts for private, marital indiscretions any day. I suspect most Americans really don't give a crap about it anyway, unless of course, it applies to their most hated enemies - people of another political party.