As DeMarco notes, in Christian countries, curiosity is believed to be the mother of all vices, and people are encouraged to stick to the corpus of knowledge that has been officially blessed by some authority, be it the Church, the government or some academic big shot. Individual deviation from the universal laws of science is frown upon, and the ones who practice such unorthodoxy are fingered as "nosy."
Sorry, I studied a bit of history and am going to need lots more references for this. If you want to suggest that Roman Catholicism clamped down on science and discovery around the time of the Enlightenment, that's one thing, but DeMarco's painting with a *really* broad brush.
You could make the same argument better without such a questionable interpretation.