Marine for 8 years. Two tours in Iraq. Never raped anyone. Never beat my wife. Never killed anyone (except from my helo). I do get angry about random stuff but I never take it out on anyone.
So yea... We have our bad apples just like any other branch or group of people.
"The United States Marines are a bunch of hard dick dragon slayers and my biggest regret is not joining their ranks."
- Napoleon Bonaparte