But there's a large exception. You won't be taxed on that amount. You presently get the first $23 million tax-free before any inheritance tax kicks in... and then only for the amount above $23 mil.
$23 million, assuming a low yield of 5% annually, means that a person is receiving $1.15 million every year. The average income in the top 5% of the Bay Area is $808k/year [1]. This is ignoring every other source of income, and only looking at passive income received as a result of already having significant wealth.