Also, I've found it a lot easier to reason about organizational issues if you don't fixate so much on "great people." More and more people enter the workforce with the idea of competence as a "ladder" being firmly ingrained in their heads. It doesn't work that way; people succeed as a function of who they are and the environment they're in. Your "smart person" is often totally useless somewhere else (see, for example: the huge numbers of FAANG-ish employees that struggle to do anything in smaller companies, and vice-versa.)
I found this entire article to read like it comes from the heyday of "only associate with people as _great_ as you want to be", which I think (a) was terribly reasoned and (b) hasn't really worked out that great, especially for the people who followed this advice.