While you obviously have an above average income, there really are people that pay very close to the marginal rate ($10M income etc). Asymptotically, the marginal rate is the top rate.
555 of them took the standard deduction instead of itemizing!
https://www.irs.gov/statistics/soi-tax-stats-individual-stat...
Source: Trump's tax returns.
Actual source: https://www.nytimes.com/2011/08/15/opinion/stop-coddling-the...
One source (there are many others with like 20 seconds of google searching): https://www.wsj.com/articles/top-20-of-americans-will-pay-87...