How do you know that the data on Glassdoor is too low? What is your source of truth? Anecdote? Glassdoor currently reports the average base salary for the job title "Senior Software Engineer" in SF Bay Area to be ~$130K which sounds about right to me, again, with nothing but anecdotal truth reference.
If you go by what people say on HN, then of course everyone in software makes $300K a year and has millions in stock options (and gets 5 job offers in their inbox a week).
