She is in charge of U.S. Army Cadet Command. She overseas all ROTC programs. The bulk of all future Army officers will be trained according to her guidelines, and her priorities will be instilled in them. She is in a position to have influence over potential officers who defy her "vision" being "weeded out".
She most definitely will be costing lives by driving out "warriors" with stunts like the "marching in heels" drill, and working to retain and promote people who have no business in a real army.