When I was searching some articles I came across this article related to quality and ethics. It might not be related to this. But I just thought sharing this would be a good one.
Ethics is the foundation of quality. Ethics is the foundation for the defining dimensions of quality care.
I think only if the ethics is followed quality will be achieved. It is technically interrelated to each other.

http://www.ache.org/ABT_ACHE/EthicsToolkit/JA08_Ethics_Nelson_Gardent.pdf