When I was in school, I witnessed a classmate do something that would have warranted immediate dismissal from the program if I had reported it. Even though I personally did not like this individual, soon thereafter her behavior caught up to her enough that she was pretty severely punished and re-educated on the issue. Even though I didn't like her, I know she's going to be a good nurse, and ultimately I'm glad she got the reminder about appropriate behavior without her life having to be completely de-railed. If I had ruined this misguided but well-intentioned nurse's career that she had been working so hard for, I couldn't have lived with myself.
I think you should really think long and hard about whether this is truly about integrity for you.