cri ptions ▁anno yed ▁efficiency - orient ed ▁colonial ▁administr ators ▁and ▁profit - orient ed ▁mer ch ants . ▁Part ly ▁it ▁was ▁a ▁matter ▁of ▁fighting ▁cor ruption ▁in ▁the ▁Empire , ▁as ▁typ ified ▁by ▁Edmund ▁Bur ke ' s ▁long , ▁but ▁failed , ▁attempt ▁to ▁im pe ach ▁Warren ▁H ast ings ▁for ▁his ▁cru elt ies ▁in ▁India . ▁The ▁most ▁successful ▁development ▁came ▁in ▁the ▁abol ition ▁of ▁sla very ▁led ▁by ▁William ▁Wil ber force ▁and ▁the ▁Evangel ical s , ▁and ▁the ▁expansion ▁of ▁Christian ▁mission ary ▁work . ▁Edward ▁Gib bon ▁W ake field ▁( 1 7 9 6 – 1 8 5 2 ) ▁spe ar head ed ▁efforts ▁to ▁create ▁model ▁colon ies ▁( such ▁as ▁South ▁Australia , ▁Canada ▁and ▁New ▁Zealand ). ▁The ▁ 1 8 4 0 ▁Tre aty ▁of ▁Wait ang i , ▁initially ▁designed ▁to ▁protect ▁Ma ori ▁rights , ▁has ▁become ▁the ▁bed rock ▁of ▁A ot ear oa – New ▁Zealand ▁b icult ural ism . ▁In ▁W ake field ' s ▁vision , ▁the ▁object ▁of ▁bene vol ence ▁was ▁to ▁introduce ▁and ▁promote ▁values ▁of ▁industri ous ness ▁and ▁a ▁product ive ▁economy , ▁not ▁to ▁use ▁colon ies ▁as ▁a ▁dump ing ▁ground ▁for ▁transport ed ▁crim inals . ▁ ▁S la very ▁One ▁of ▁the ▁most ▁controvers ial ▁aspects ▁of ▁the ▁Empire ▁is ▁its ▁role ▁in ▁first ▁prom oting ▁and ▁then ▁ending ▁sla very . ▁In ▁the ▁ 1 8