Going from an armchair Sovietologists perspective:
Petraeus wasn't the first guy to sing the Money Trumps Peace tune in the Pentagon, but he was chosen to spread the culture to Iraq and Afghanistan, meaning he was a loyal and trusted member of the BFEE. The late Col.
Ted Westhusing found the corruption palpable. Also supporting his membership in the Secret Government-Mafia-Wall Street-NAZI- axis is Col. Michael Meese, his assistant chief of staff in Iraq, is the son of former Reagan attorney general Edwin Meese of Wedtech and Inslaw PROMIS fame.
IMFO, as to who is properly zooming who, DIA over CIA, CIA militarized can trump DIA, Secret Spy Club This vs Secret Spy Club That: It may be the Pentagon refuses to cede nuclear authority to CIA. The generals and admirals have not been held to account for the
Moorer-Radford affair, let alone their roles in ginning up wars from the Gulf of Tonkin to the present day. OTOH, a recently dismissed Chairman of the JCS worked to derail Bushco's run-up for war on Iran, showing me there are many -- if not the majority -- of men and women at the top of the leadership have ingegrity. Whether they are following orders from a hidden level above, whether that person or persons command CIA, is open to question.
What's clear is the fact that using a sexual affair as the public cause for terminating Petraeus' government service indicates a desire to completely remove the DCI from any future role. From now on, the guy is labeled as an untrustworthy cheat. Whoever decided to "out" the general wanted the Obama pieces of the mobile to continue hanging around. It may be we are seeing the removal of the "money trumps peace" pieces from the mobil. They're still around, in the forms of near-invisible wars on behalf of the interests of the ownership class, the resource extraction industries, and the empire.