What's more, an exclusive focus on single diagrams flirts with delusions of universality. Arendt noted the totalitarian emphasis on logic.
"The device both totalitarian rulers used to transform their respective ideologies into weapons with which each of their subjects would force himself into step with the terror movement was deceptively simple and inconspicuous: they took them dead seriously, took pride the one in his supreme gift for "ice cold reasoning" (Hitler) and the other in the 'mercilessness of his dialectics,' and proceeded to drive ideological implications into extremes of logical consistency …" [Hannah Arendt, "Ideology and Terror," p. 318]
"The power, which Marx thought was born when the idea seized the masses, was discovered to reside, not in the idea itself, but in its logical process which 'like a mighty tentacle seizes you on all sides as in a vise and from whose grip you are powerless to tear yourself away; you must either surrender or make up your mind to utter defeat.'" [Ibid., p. 319].