Because corrupt system is ineffective system. If they have enough influence to control the system through and through, enough resources fine-tune it to serve th

Because corrupt system is ineffective system. If they have enough influence to control the system through and through, enough resources fine-tune it to serve their ends, enough involvement to subvert it, why would they put up with ineffectiveness in their system. In a way, all rulers face this battle, and tyrants seem to have easier time with it than elected leaders.