In the exercise of the powers contained in Section 2.1 herein, the Council shall have the right to contract with persons, firms, corporations or governing bodies to furnish fire protection to property outside the corporate limits of the City for a fair consideration, if the Council shall find that the financial interests of the City are advanced by obtaining payment therefor; and that the prosperity of the Municipality and inhabitants are advanced through preventing a conflagration which might spread within the limits or through protecting from fire, industrial or commercial properties which employ residents of the City.