No doubt, modern society has its defects. However, it's hard to pin responsibility on something as vague as "modern society". I've heard Senior Military Officers state that the U.S. Military includes a cross section of society, and that moral problems in the military (re: drugs, etc.) reflect that society. While it is true that modern societal failings influence new cadets, and that does present a challenge, it does not absolve the officers and officials responsible for failing to properly screen new cadets, using traditional moral and ethical standards.
The moral weaknesses of "Modern Society" may be a status-quo condition, but individual responsibility and accountability should be an absolute. The officers and officials in chain of command for the USAF Academy (as well as Annapolis, and West Point) should be held accountable and responsible. While it is good that they've taken corrective disciplinary action, if they fail to correct the screening process to remove the "PC", and return to traditional evaluation standards, they will not fix the real problem.
Even with the "traditional evaluation standards" there were problems. Sometime it's with one or two cadets, sometimes the problem is more widespread. I don't recall a major scandal during my time, but I do know of several folks who were dismissed due to an honor violation or some such thing.
As RightOnline said, there are some bad apples who slip in. The issue is whether or not the Academy will deal with those who violate the rules.
USAFA '73