What Would Drive Someone To Do Something Like This?

I'm serious.  What would cause someone to do something so nasty?

A sergeant first class on the staff of the United States Military Academy at West Point has been accused of videotaping female cadets without their consent, sometimes when they were undressed in the bathroom or the shower, according to Army officials...

“The Army is committed to ensuring the safety and welfare of our cadets at the Military Academy at West Point — as well as all soldiers throughout our Army,” Gen. John F. Campbell, the Army vice chief of staff, said on Wednesday. “Once notified of the violation, a full investigation was launched, followed by swift action to correct the problem. Our cadets must be confident that issues such as these are handled quickly and decisively, and that our system will hold those responsible accountable.”  

If guilty, this NCO deserves (and will probably be sentenced to) the US Disciplinary Barracks at Fort Leavenworth.