unfair or fair atleast you can proudly say that the income/wage you are receiving to your employer is far more different from a third world country, the bigger the income the country is rich. you'll have nuclear weapons, submarines, jet planes, warships, and the more you complain about income tax, the country you belongs to, gets respected by other countries knowing that you have crazy weapons that could make a place vanish that's all i know. lol.
A man in Africa using only a couple of dollars a week, but who owns his own farm, produces a surplus of food, and doesn't really need to even go to the market is much richer then a McDonalds worker, who is constantly on call for his job, uses $300 dollars a week, and has trouble keeping his head above water (financially)
To the untrained eye, the McDonalds worker out-earns the "third world" man 150 to 1 . But the third world man can work less hours, owns the products of his labor and can do as he pleases.