If a licensee is a firm, association or corporation, it shall be sufficient cause for the suspension or revocation of a license that any officer, director or trustee of a licensed firm, association or corporation, or any member of a licensed partnership, has so acted or failed to act as would be cause for suspending or revoking a license to such party as an individual. Each licensee shall be responsible for the acts of any or all of his employees while acting as his agent, if such licensee after actual knowledge of said acts retained the benefits, proceeds, profits or advantages accruing from said acts or otherwise ratified said acts.