In any proceeding to determine the justness or reasonableness of any rate, fare, or charge of any common or restricted common carrier by aircraft there shall not be taken into consideration or allowed as evidence or elements of value of the property of such carrier either goodwill, earning power, or the certificate under which such carrier is operating; and in applying for and receiving a certificate under this chapter any such carrier shall be deemed to have agreed to the provisions of this section, on its own behalf and on behalf of all transferees or lessees of such certificate.