Gleaned from my "Ethics in Science" students:
- There exists an Official Scientist's Code of Ethics to which all scientists swear allegiance.
- There exists an Ethics Board that operates nationally (and maybe internationally) to impose penalties on scientists who violate the Official Scientist's Code of Ethics.
- In the 22 years since the publication of Cantor's Dilemma, the scientific community has likely evolved to become more civilized and more ethical.
- Anyone who has earned a Ph.D. in a scientific field (at least in the past 22 years) must also have had extensive training in ethics -- at least the equivalent of a semester-long course.
As to the origins of these assumptions, I don't know what to tell you. I'm curious about that myself.