There seems to be a correlation between this sort of corruption and national leadership that is egocentric, biased and pig-headed. Leaders who either think they know more about foreign matters than the experts (George W. Bush and Donald Trump), or believe that their own religious mythology and racial stereotypes count for more that than the rights of other peoples and nations (Lloyd George and Balfour), or are so consumed by their personal political ambitions (Harry Truman) that they will ignore fact-based intelligence information that complicates those aims.
Of course in the democratic West all such leaders are to some extent reflections of those who voted for them. So keep in mind the old cartoon adage: "We have met the enemy and he is us."
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