Some news source linked this site, and thought it was a fun game that also showed people where they stand compared with rest of the world:
Select country then:
To get the most accurate placing possible, please include your annual salary after tax, plus any other money that you receive each year: benefits, pensions, money from relatives, even your student loan.
This route is the most precise – but you’ll need to know your net worth. That’s everything you own (value of your house, assets, shares, income, bank balance, belongings), minus anything you owe (mortgage, debts, student loans)
So, about where did you score?