[RussianCow]

That has less to do with the engineers themselves and much more to do with the benefit that those companies get from those engineers. Someone making minor UI changes at Google might provide a 5% increase in ad clicks in certain situations, which earns Google millions in additional revenue. Even though the bar for that kind of work may not be very high, most companies simply don’t get that much benefit from a single engineer, even a 50x-er.