It's the same shock/objection that's expressed at CEO salaries: Do we really think the engineer at Netflix who makes $1M/yr is really 10X more productive or adding 10X more value than the engineer at NoNameCo who makes $100k/yr? Or are people simply paid what each company is willing to pay them, without some kind of full-industry merit-based leveling system? In my view, pay has long since totally divorced from productivity and more closely tracks random chance of what company you ended up in, and who acquired who.