Does anyone think this chart by xkcd should be in schools to help students understand money, taxes, expenses, income and other economic issues?

I do. Here is the chart. In fact, I think everyone should have one. Each number is referenced with sources. It gives such a clear picture or wealth and helps people understand things like: household income, corporate wealth, candidates incomes and net worth, industries, etc..
It seems that many arguments can be settled one way or the other by studying this chart and then going to the original sources for verification.