When you have as many people in the military as we have, and the demand for bodies is greater than the need for "quality" people, guys like this are going to be in there. This is not an indictment on the military, just an observation. There were marines at Camp Lejeune who were selling Ecstacy, others have been arrested for killing a fellow Marine because she was pregnant. I know of at least one case where a Marine married a girl, then as soon as the pay increased and he got some allowances afforded married soldiers, he treated her like shit and rarely came home.
There are tons of people with a bad agenda, and there are many in the military. We have a fucked up society, the military is a microcosm of it.