There are many "bullies" in the service. They are expert at wrapping themselves in the cloak of the chain of command. One incident that happened to me: A Caption, who was my company commander, weighed about 250 lbs at 6 ft. As part of our physical training, one day a week we would play random games. One of those was called "combat soccer", a rather rough affair combining rugby with soccer (a soccer ball was used and you could kick it but it could be picked up and when tackled you surrendered it. Goals were scored by putting it through 2 cones about 8 yards apart. "Minor" injuries were common with a medic often doing stitches on a pool table after the games. During this, the captian grabbed me from behind and literally lifted me off the ground by my underwear and bounced me up and down. I then made it a point, as he got winded (it wasn't all muscle by a long shot), I easily knocked him over on the muddy field. About the third or fourth hit that I knocked him down, he broke his arm. I then got my promotion points dumped the next day. I never got promoted to sergeant. I left the military in frustration.
Anywhere you have persons in authority over others, bullies are attracted to it. Remember that sexual abuse/rape is often more about power than sex. They often are politically skilled at painting their complaining victims stories as frivolous allegations. This is seen in the Catholic Church, every protestant faith, muslim faith, buddhism, public/private schools, sports leagues, business, government, farming, family life, dance, martial arts, police, military, sea faring ships and every other corner of human existence. The only thing that really surprises me is when people profess being surprised.
God grant me
The Serenity to accept the things I cannot change,
The Courage to change the things I can,
And the Wisdom to know the difference.