Should software developers have a code of ethics?

Scrum.org CEO is quoted throughout this CIO Magazine article on the need for a code of ethics.  

First, do no harm. This is the underlying message of the Hippocratic Oath historically taken by physicians to show they will abide by an ethical code of conduct. Plumbers, construction workers, law enforcement -- almost any professional whose work impacts the public must abide by some sort of ethical code of conduct.

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