A lot of people inside the Beltway are tut-tutting about the recent campaign focus on Mitt Romney’s personal history — his record of profiting even as workers suffered, his mysterious was-he-or-wasn’t-he role at Bain Capital after 1999, his equally mysterious refusal to release any tax returns from before 2010. Some of the tut-tutters are upset at any suggestion that this election is about the rich versus the rest. Others decry the personalization: why can’t we just discuss policy?

And neither group is living in the real world.

First of all, this election really is — in substantive, policy terms — about the rich versus the rest.

The story so far: Former President George W. Bush pushed through big tax cuts heavily tilted toward the highest incomes. As a result, taxes on the very rich are currently the lowest they’ve been in 80 years. President Obama proposes letting those high-end Bush tax cuts expire; Mr. Romney, on the other hand, proposes big further tax cuts for the wealthy.

The impact at the top would be large. According to estimates by the nonpartisan Tax Policy Center, the Romney plan would reduce the annual taxes paid by the average member of the top 1 percent by $237,000 compared with the Obama plan; for the top 0.1 percent that number rises to $1.2 million. No wonder Mr. Romney’s fund-raisers in the Hamptons attracted so many eager donors that there were luxury-car traffic jams.