Anyone (PIs, research team members, students, etc.) who is involved in a research project have the responsibility to act in a proper and ethical manner.
A recent National Council of University Research Administrators (NCURA) YouTube Tuesday video, “Research Ethics” provides information on what to keep in mind when working on a research project, regardless of the terms and conditions of any award.
See http://www.youtube.com/user/ncura1959 for the video. For more information about responsible conduct of research go to http://my.umbc.edu/groups/compliance/documents/166. Training and educational opportunities are also available related to ethical conduct of research at http://my.umbc.edu/groups/compliance/documents/163.