Nigba re akoko odun meji ni ofiisi, Tibaijuka oversaw pataki atunse eyi ti yorisi ni awon United Nations General Assembly igbegasoke ni Centre fun eto ipo ati iyioruko pada  ni United Nations fun eto ibugbe (UN-ibugbe).. 
Ní ọdún 1979, àwọn òbí rẹ̀ pinnu láti mú àkọ́bí ọmọ wọn padà sí ìlú Ẹ̀kìtì kí ó lè kọ́ àṣà, iṣẹ̀dalẹ àti iṣẹ́ ìlú Ẹ̀kìtì dáadáa; fún ìdí èyí, ó wọ ilé ẹ̀kọ́ girama ti Ipoti ní ọdún kan náà.. 