Ethics in corporate training

Any process carried out by more than one human is a social process. One could make the observation that organically, every social process has evolved ethics surrounding the activities of the process. Ethics have the role of lubricating the process and ensuring better overall human benefit. Here are some examples in no particular order:

1. Netiquette
2. Craftsmanship
3. The Hippocratic Oath

(In my opinion, these examples are manifestations of ethics, in specific socio-professional settings).

Now since ethics play such an obviously important role in ensuring process quality, why aren't they an indivisible part of corporate training?