The unethical behavior in this situation is that Joseph recommends that the hiring manager offer his friend a position, even though he knows he doesn't qualify for the role.
Ethics corresponds to a guide to positive and fair behavior, so in the selection process, it is essential that the recruiter is impartial, empathetic and seeks to select a candidate for a vacancy according to their profile and qualifications, without privileging or harming other candidates.
Therefore, Joseph's attitude, based on his high hierarchical position, was considered unethical, as it is not right to privilege people in an organization based on their personal relationship.
It is essential that as a high-level manager, Joseph develops ethical behaviors that set an example for his team.
Find out more information about ethics here:
https://brainly.com/question/18401975