Like this blog post points out, there’s a ton of postings out there with these absurdly low pay expectations. And yet, companies can, and do, struggle to fill $120,000 a year jobs.
It can simultaneously be the case that the majority of the market is willing to pay peanuts AND the average developer routinely signs for far, far more than that.
The majority of the market simply never finds any takers whatsoever for their “genius social media idea I own it you have to sign an NDA for, you do all the work, $15/hr”.
Companies must transact for labour at a rate that transfers wealth to them. On average, employees must be able generate more value to a firm than their wages, otherwise employing people would be a net negative to a firm.
That's not what I said at all. The first sentence is a constraint on firm survival, not a statement about where wealth is derived.