Most students in the CS program hate math and CS theory courses. Subjects like Algorithm Analysis, Discrete Math, Automata Theory which often get cited as examples of stuff that self-taught programmers might not know are boring and annoying. Almost every student in the department dreads these courses but has to hold his/her nose and take them to fulfill the degree requirement and most people promptly forget these courses after passing the exam unless they have real interest in the topic and are taking fourth year electives in the subject. To be honest I don't think the self-taught programmers are missing anything.
And congratulations for digging up a use case for Calculus in CS. I can site examples of CS fields where say Cognitive Psychology has huge influence. The fact still remains that it is completely irrelevant to most of CS unless you are interesting in that one obscure area (in which case more power to you).