What does the scandal around former USC med school dean say about ethics?

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The LA Times dropped a bombshell a week ago about the former dean of USC’s Keck School of Medicine. Carmen Puliafito used illegal drugs and regularly consorted with a prostitute. In the week since the Times investigation came out, USC has begun the process of firing Puliafito. He remained on the faculty - and kept seeing patients - after he left his post as dean.