No you missed the point.

This kind of morality is between you and your Rabbi. We are allowed to look down on it all we like. It has no relevance to law or keeping your job because if you allow this kind of thing to have relevance it never ends. Rank selfishness comes out in so many ways.

"You got a parking fine, your social conscience is clearly lacking..."

If someone is willing to break their most sacred vows to their loved ones, why should I, a relative stranger, think they will keep their word to me?

You are absolutely entitled to that opinion.

It does end, because people lose their jobs for office affairs all the time and rarely if ever for parking tickets. There’s no moral inconsistency there, not all bad behavior is equivalent.

number of people who lose their jobs for infidelity divided by the number of people who do it.

Hard to estimate it precisely but less than 1% is likely to be accurate, no?

What percentage of people who get parking tickets do you think lose their jobs as a result?

Not many, because we have principles of that kind of morality not being applicable. Double parking beside fire hydrants isn't universally celebrated though, is it? I look down on that kind of thing, you might be the same yourself.

You do not have to judge someone for a parking fine just because you judge someone for cheating on their wife.

Other countries and cultures formalize infidelity, Americans just haven't bothered doing so yet.

Even reading the history of European nobility, it is amazing how often you'd come across married nobles who didn't even live in the same city as their partner, and who openly had mistresses or young handsome men hanging around all the time.

I've also talked to Chinese business men who lamented that they are expected to have an overseas girlfriend, almost as a sign of status.

And hell, Saturday Night Live has been joking about rich old ladies and their love of hiring pool boys for literally decades now.

My point is not to normalize cheating, but rather that all sorts of arrangements have existed throughout time and different cultures and instantly saying "he's sleeping with someone who isn't his wife!' doesn't mean that person is devoid of morals.