A long time ago the Western world had a voluntary wealth tax of sorts, the tithe. That's 10% of your income and/or property to your church. Admittedly taxes were then much lower, but whatever else you may think of them, churches poured vast energy and resources into social services.

Now that it's an elected government instead of an opaque non-profit providing social services, they've become unpopular with the wealthy. I suppose the government can't assure you a place in God's Kingdom :-)

https://en.wikipedia.org/wiki/Tithe

Edit: certain of these are based on land, not income; see the article.