Well, in fairness at least one of them contributed significantly to the work that generated the design of the language that has powered almost all of computing

Well, in fairness at least one of them contributed significantly to the work that generated the design of the language that has powered almost all of computing one way or another for decades (in spite of its many and varied howling and inexcusable flaws, as you'd call them). I'd say that in-practice that beats any aesthetic view of 'design' you have in mind.