Its a marginal tax, so it won't even affect engineers making $500k, unless they cash in on a windfall.
What do you get for your taxes? You get to be living in the one place on earth where you CAN make that much money. Nothing is stopping you from moving elsewhere on this earth and renouncing your US citizenship. Then you can stop paying those taxes (and likely pay higher taxes).
You get access to a massive highway system funded by the feds, you get access to multiple international airports in the Bay Area, you get access to a collection of some of the smartest people in the world at some of the best institutions in the country that suck in an absurd amount of federal funding.
Let's not even get into the fact that Capital gains tax is at its lowest ever, and at one point capital gains for top earners was 40%, and income tax was even higher.