Are developers in San Francisco really worth the cost? According to Paysa data on Lyft the average Software Engineer makes 263k and the average Senior Software

Are developers in San Francisco really worth the cost? According to Paysa data on Lyft the average Software Engineer makes 263k and the average Senior Software Engineer makes 354k (I believe these numbers are total comp). If I'm reading the earnings correctly then $506,206,000 of stock compensation is going towards R&D. Unless you are hiring someone into a highly specialized role I don't see how these numbers make sense. Are these developers really worth multiples of developers in other cities? https://www.paysa.com/salaries/lyft https://www.paysa.com/salaries/lyft