It is possible for a member of staff to be a member of an organisation, depending on the constitution of the organisation and following the relevant application process. If the organisation is a charity, then there may be a duty for members to act in the best interests of the charity, which may cause conflicts of interest. In those cases, a conflict policy may be very useful.
ITC: Company Directors & Conflicts of Interest
Company Directors have a legal duty to avoid conflicts of interest. This help sheet is designed to help you identify and deal with them correctly.