In any application under the Entail Acts, to which the consent of any person is required, where such person is disabled under the provisions of the Entail Acts or otherwise from consenting by reason of being under age or subject to other legal incapacity, the Court shall appoint his tutor, curator, or other administrator, or one of his tutors, curators, or administrators, or another person to be curator ad litem to the person under disability, and such curator ad litem may consent on his behalf, and no curator ad litem who may give any consent under this Act shall incur any responsibility on account of such consent in respect of any alleged error in judgment or inadequacy of consideration, or want of consideration therefor unless it shall be alleged and proved that he acted corruptly in the matter.