Could be gay interaction. Super violent mental illness.
Doubt the gay idea. Not because of Pride in the Corps, but simply that Staff NCO's, as a rule, have been in long enough, in excess of 5 years, and at least one re-enlistment, that the pole smokers have been largely weeded out by the greedy personality flaws that accompany gayness.
It's something that doesn't get a lot of press, to list the secondary sociopathic greed prompted behaviors that seem to couple with homosex. Thing like searching for the Ultimate Forever Orgasm, (BDSM, drug abuse, cross dressing.), profoundly selfish attitudes, ("I can do anything I want!"), the "You can't possibly understand me!" meme, contempt for 'breeders', which have always been there, if unstated. These do not react well with the Corps' code.