If you think about it, Sultans have power in much more things compared to a regular president. There are those who will try to stay for a long time, even near death! Imagine just having this amount of fortune which can corrupt you eventually plus power over the people.
International Level: Envoy / Political Participation: 240 24%
Brunei's Sultan Hassanal Bolkiah has returned an honorary degree awarded by Britain's Oxford University after a global backlash led by celebrities including George Clooney and Elton John for proposing the death penalty for gay sex and adultery. Source 2y.