Why isn’t cheating seen as an honesty and integrity issue?

It’s a given that in most uniformed services, cheating on partners and spouses is rife. As police, we are held to a higher standard than the public and considering any other bad choice/mistake you make in your personal life can lead to misconduct if it falls outside of the Code of Ethics, I don’t understand why cheating is the only thing that’s overlooked.

Aside from the fact that it would be very difficult to keep up with, what’s everyone else’s thoughts?