(b) Whenever any public or private corporation, board or association in this state holds a policy in any such company, any officer, stockholder or trustee of any such corporation, board or association may be recognized as acting for or on its behalf for the purpose of such membership, but shall not be personally liable upon such contract of insurance by reason of acting in such representative capacity. The right of any corporation organized under the laws of this state to participate as a member of such company is hereby declared to be incidental to the purpose for which such corporation is organized and as much granted as the rights and powers expressly conferred.