there was only one man, Eliezer, who perceived the difference between what he considered a sane approach to AI and all the others approach

But the LW community was not really, in the first instance, built around Eliezer's (or anyone's) ideas about how to approach AI. It was built around his ideas about how to think rationally, and a lot of that existed before Eliezer wrote anything on the subject.

(I am not making claims about the originality or unoriginality of Eliezer's writings about rationality. The point, with which I am absolutely sure he would agree, is that much of the difference between a typical LW rationalist and a typical non-rationalist lies in things that Eliezer did not invent and was not the first to write down.)