In the grim period that followed Lehman’s failure, it seemed inconceivable that bankers would, just a few months later, be going right back to the practices that brought the world’s financial system to the edge of collapse. At the very least, one might have thought, they would show some restraint for fear of creating a public backlash.

But now that we’ve stepped back a few paces from the brink  thanks, let’s not forget, to immense, taxpayer-financed rescue packages  the financial sector is rapidly returning to business as usual. Even as the rest of the nation continues to suffer from rising unemployment and severe hardship, Wall Street paychecks are heading back to pre-crisis levels. And the industry is deploying its political clout to block even the most minimal reforms.

The good news is that senior officials in the Obama administration and at the Federal Reserve seem to be losing patience with the industry’s selfishness. The bad news is that it’s not clear whether President Obama himself is ready, even now, to take on the bankers.

Credit where credit is due: I was delighted when Lawrence Summers, the administration’s ranking economist, lashed out at the campaign the U.S. Chamber of Commerce, in cooperation with financial-industry lobbyists, is running against the proposed creation of an agency to protect consumers against financial abuses, such as loans whose terms they don’t understand. The chamber’s ads, declared Mr. Summers, are “the financial-regulatory equivalent of the death-panel ads that are being run with respect to health care.”