[Waiver of exemption from assessment for improvements.] Notwithstanding sections 67-8 and 46-74.2 or any other law to the contrary, any society, association, or corporation engaged in religious, charitable, educational, scientific, literary, or other benevolent purposes whose land is exempt by law from assessment for improvements, may file or join others in filing a petition for an improvement district and shall, by such filing or joining to file, be deemed to have waived exemption from assessment for improvements and its lands within the improvement district shall be assessed for improvements without contribution from the county or the State. [L 1967, c 35, §1; HRS §46-74]