Economically, there are only two classes worth worrying about in the US: the robber barons (aka the top 1 tenth of the one percent) and their minions, and everybody else. The robber barons are increasingly making their money through complex financial schemes (think CDOs) that tend on the whole to defraud and degrade the wealth of everyone else, and the result has been that everyone else’s wealth is decreasing while theirs increases.
For example, suppose you are a furniture maker in North Carolina. You make money by buying raw materials, adding value to them through labor and processing via machinery (lathes, etc.) and turning out a finished product that people can buy and sit on. A dollar that you earn via that work represent real value.
Now suppose you are an arbitrager. You make money by having a computer program make bets against the value of currencies vs. other computer programs. If your program is better than others, and/or your insights into the values of currencies are better than others. Liberal fundraising icon George Soros literally made billions in that way in the Black Wednesday debacle by short selling the British Pound.
Big high profile arbitrage incidents like that are outliers, however. The vast majority of arbitrage is computer programs making trades that involve fluctuations that might amount to the equivalent of fractions of a penny in US currency, at speeds faster than humans can manage, operating against other programs that make trades at the same speeds.
Basically, the arbitragers are harvesting the wealth that comes from tiny fluctuations in world currencies. Every day they turn their computers on, watch the charts and graphs, and harvest the millions that they make as a result of those fluctuations.
But at the end of the day, what do they have that is of real value? They are bettors who have won bets, just like high rollers in Las Vegas. Sometimes the lose, sometimes they win, but mostly they win because often they are betting against the economies of nations.
What do they produce that anyone else in the world can use? Nothing. Yet their dollar can buy as much as the furniture makers’ dollar can, even though the furniture maker has created a real product that people can use.
Basically, we have one class of people (the financial industry) that plays with Monopoly money all day and then is able to use their Monopoly money like real dollars, while the rest of us have to work to create real products and services that others can use for our dollars.
Which is why there is so much wealth inequality in the US of late, and why the fortunes of the middle class have fallen so much as they are relentlessly pushed back into the lower class by the economic consequences of the real wealth we all create having to compete with the financial industry’s monopoly money.
All other class distinctions are meaningless, at present. It is Us vs. Them.