We have often seen how leaders who got into power because of backing from their tribe, sect or regional and ethnicities are the most corrupt ones because they knows that their people will vote for them regardless they do any good work or not. Look at African nations and even some Arab nations the reason why they are going through corruption and suffering is because people don't vote based on merit rather on personal relationship like sect, ethnicity or religion and then there comes countries like India and Pakistan where they win based on vote from majority community by instilling fear that minorities gonna rule them if not votes to power and next five years everyone suffers.
I would hold people accountable for being in an creating a corrupt leaders rather than the leaders themself.
Mate you need to understand African politics, its really based on merit but what am I going to get from this person, those people that really have the power to put those guys in positions don't acre about the masses that wiudl suffer from it, its just business to them and yeah I can't blame them cause if anyone was as rich as they are you would be more bothered about staying onto than think about a poor person that you don't even know, so yeah that's how life is, I just pity those that take bribe to do things cause at the end if they are not well established and the elected leader is corrupt everyone suffers including them.