Sections 398A.01 to 398A.08 shall be construed liberally to effectuate their legislative intent and purpose, as complete and independent authority for the performance of every act and thing authorized, and all powers granted shall be broadly interpreted to effectuate this intent and purpose and not as a limitation of powers. In the event of any conflict or inconsistency with any other law or charter provision, the provisions of sections 398A.01 to 398A.08 shall prevail.