In Kenya, we are taught values in school in CRE/IRE/HRE and the class rules on not fighting etc etc. That's ethics.
Personally, I think its kinda silly to teach adults ethics. You can make rules like the Advocates have and impose real consequences that really pinch for the behavior you truly don't want, but I think an adult by University is already formed in terms of his character and personality. When he leaves school, he will conduct his professional life according to his genuine character, no matter what marks he got in the professional ethics class.