As you move up the ladder, more of your income is increasingly derivative of society as facilitated by the state and its spending. For example, businesses are dependent on sufficiently educated employees to run them and need a sufficiently affluent population to buy their products. Usually products are delivered via roads, the Internet, or other public infrastructure. Most businesses use electricity from a public grid even if they have a private company that they pay their bill to. Because of this, rich people may receive more than 3/4 of the benefit of the services provided by taxes.