‘Twould be interesting to see if Petraeus ever court martialed a subordinate for adultery or conduct unbecoming.
Since military leaders integrated anal sex into the military culture, it’s pretty clear sexual behavior and family loyality is not part of the military ethics the General is conserned about.
Disloyality to family guarentees disloyality in bigger ways, too. He came out for putting Americans under Shaira speech controls because it serves his interest in buddying up to the Muslim Brotherhood. He was not loyal to constitutional freedom when it became inconvientent. That oath to freedom meant as much to him as his oath at the altar to his wife.