> Like in Sweden we pay ~50% income tax

Sweden median income is 345,529 SEK, or $36k. 90%ile is 658,623 SEK or $69k. For 20-65 year olds it's a bit higher.

(That's from "Total income from employment and business by deciles, sex and age 2023")

Someone on 700k a year - so top 10% income - pays about 26% of their income in income tax.