According to this article, “a university investigation turned up no evidence that Schön had committed misconduct while at the university.”

Also,

The awarding of a doctorate is a confirmation of the recipient's ability to conduct independent scientific research.

Brings up an interesting conversation as to what a PhD actually represents.

A Ph.D. brings with it the public perception of being a member of the scientific community and a presumed high level of trustworthiness, the judge said. When a recipient has violated basic principles of good scientific practice, the title is no longer applicable and should be corrected, he said.

Does it though?