So that's 10,000 people and the city SF Bay Area has 7.15 million, and 880k live in SF proper. It doesn't sound like it'd make a very big dent in prices.
> Compass states 5,644 properties were sold in the city last year, 2,208 of those were single family properties and software employees represented more than half of the buyers.
10,000 home buyers would take 2 years to consume all SF properies and 4 years to consume single family homes.
About 2 years worth of new millionaires.
Also consider that if someone is selling one such home, unless they're leaving the area or offloading an investment property, they're likely trading up (which means there's not a net change in the number of available multi-million dollar homes.