Your brain is performing "compute-intensive brute-force attacks on the problem/solution space" as you read this very sentence. You trained patterns on English syntax, structure, and semantics since you were a child and it is supporting you now with inference (or interpretation). And, for compute efficiency, you probably have evolution to thank.
The comparison was clearly between the rich and the poor. We can take the 99.99th wealth percentile, where billionaires reside, and contrast that to a narrow range on the opposite side of the spectrum. But, in my opinion, the argument would still hold even if it were the top 10% vs bottom 10% (or equivalent by normalised population).
You sound like you have your own issues to resolve if you are this exhausted by work, which doesn't mean the article is a parody just because you are not its exact intended recipient. There are a handful of tips in there that can help engineer more comfortable situations for people who are less confident networking. That's only if someone is willing to engage with the advice and wishes to better themselves with it, instead of just blaming... capitalism?