The exercise of powers specified in this division will be in all respects for the benefit of the people of the state, for their well-being and prosperity, and for the improvement of their social and economic conditions. Therefore, this division shall be liberally construed to effect its purposes. In the event of conflict between this division and any other provision of law, the provisions of this division shall be deemed controlling. If any clause, sentence, paragraph, or section of this division is held invalid by any court of competent jurisdiction, the decision shall not affect or impair any of the remaining provisions.