The article is about annual income, not wealth.

As of 2020, 99th percentile net worth in the US is about 11M. https://dqydj.com/average-median-top-net-worth-percentiles/

This chart is annual income, not net worth – in Los Angeles, for example, the median 2bd starter home is over $1 million, while in many states $300k is enough for a 3-4bd home with a yard and a garage.