Institutions focus the power of sovereign individuals, creating Great Leaders. While it is obvious that nefarious parties will seek that power, and so corrupt institutions, that will not be my point here.
The problem is more fundamental. We are neither Ubermensch, nor untermensch. There are not really Great Leaders, and the creation of them through institutional mechanisms deranges the natural social function of humanity. We are peers, and our societal mechanisms should be designed to effect our ends without creating artificially superpowered parties.
While the extant system is what there is, the distortion of our human society such institutional mechanisms cause is revealed here, with the several ways in which those vying for the Great Leader status compete to seize it invariably producing apparent deception.
I cannot support such a system for implementing the mutual ends of the peers in society. I don't think elevating peers to the status of Great Leaders can be more than occasionally beneficial, like a broken clock telling the right time. I am sorry you are dismayed by this clusterfuck. I know you feel your candidate for Great Leader is the best choice of those on offer, but I submit that there should be no such Great Leader at all, and the clusterfuck is simply a specific example of the unavoidable failure any system of delegating our sovereign authority to a Great Leader must inevitably produce.
Thanks!