Where is "here?" The average engineer salary (even if you say software dev only) in the US is absolutely not $170k/yr, it's closer to half that.[0] And $400k/yr is dentist-level money. I'm not saying nobody makes that, lots of devs (in absolute terms) do, but it's about as helpful as saying "businesspeople make $40M-$40B a year" when the vast majority of them make $65k/yr as a middle manager.
[0] https://www.google.com/search?q=median+software+engineer+sal...