If the director believes that a company may be conducting its affairs in a manner contrary to law or detrimental to the interests of the policyholders or if requested by resolution adopted at any special or annual meeting of its members, he shall cause the books and affairs of any company operating under the provisions of sections 380.201 to 380.591 to be examined and shall furnish a report of such examination to the company examined. If the company is conducting its affairs in a manner contrary to law and detrimental to the interests of the policyholders, the director shall take such action as shall best protect their interests. The expense of necessary examinations shall be paid by the company examined.