Which of these are ethical principles of social engineering?

You have to take full responsibility for your actions.

It is acceptable to make someone feel bad during an evaluation, if the overall security of the organization is improved.

Do not participate in any unethical, unlawful, or illegal activity.

It is acceptable to impersonate a person even if it would be illegal according to local laws, if it is done as part of a security evaluation in agreement with the client.

You are fully responsible for the security of the information gained through the security evaluation.