It's probably different in the UK where The Guardian is, but in the USA the bottom 45% of wage earners pay $0 federal income tax while the top 20% pay 87% of it. I'm not sure how much more you should slap on the "evil" job-creating rich before it's "proper", but 87% already seems pretty high to me.
https://www.marketwatch.com/story/45-of-americans-pay-no-fed...