Describe a time when your job conflicted with your ethics. How did you handle the situation?

"We had a difficult situation in my last job where some information came to light about improper hiring evaluation practices on the part of one of my coworkers. That person asked me not to say anything about it, yet it was a clear violation of our hiring practices, so I reported it to my manager, who then reported it to HR. It was handled per our company policy from that point forward…"