You're insane
Even though 90k is ~3x the average personal income for the US, when you're living in one of the most expensive cities in the country, you can absolutely be broke on that.
You can argue it effectively pushes down the size of the offers people get, but you don't have to worry about it when you calculate your net take home.
My point was that on $90k in SF proper, if you want a "nice" place, even a 1BR or studio you're going to be spending a huge percentage of your income on rent and basic necessities.