Yeah if you look at that tax bracket
$150,001 and over $47,100 plus 45c for each $1 over $150,000
You pay $47,000, then $850 000 x $0.43 = $365 500. So they would easily pay a third of their income to the ATO. you pick 100 Aussies earning a mil, there 36 mil for the ATO. But i'd say alot of those million + earners have very smart ways of getting out of paying alot of tax. I remember a story about Kerry Packer, he never used to pay much tax at all, and was all legit.