Whenever any officer, director, manager, or other employee in a position of authority of any licensee under this Act shall be convicted of any violation of this Act while engaged in the course of his employment or while upon the premises described by said license, said license shall be revoked and the fees paid thereon forfeited both as to the holder of said license and as to said premises, and said bond given by said licensee to secure the faithful compliance with the terms of this Act shall be forfeited in like manner as if said licensee had himself been convicted.