No corporation that is not a corporate fiduciary as defined in Section 1-5.05 of this Act or a foreign corporation having received a certificate of authority under Section 4-5 of this Act shall be allowed to use the word “trust”, “trustee”, or “fiduciary” in its corporate name unless the Commissioner has approved that use after finding that the corporation will not be engaged in business as a corporate fiduciary and that the use of the word “trust”, “trustee”, or “fiduciary” by the corporation will not be misleading to the public.