The shift away from commercial values has been expressed well by Michelle Obama in a series of speeches. “Don’t go into corporate America,” she told a group of women in Ohio. “You know, become teachers. Work for the community. Be social workers. Be a nurse. ... Make that choice, as we did, to move out of the money-making industry into the helping industry.” As talented people adopt those priorities, America may become more humane, but it will be less prosperous.

Then there’s the middle class. The emergence of a service economy created a large population of junior and midlevel office workers. These white-collar workers absorbed their lifestyle standards from the Huxtable family of “The Cosby Show,” not the Kramden family of “The Honeymooners.” As these information workers tried to build lifestyles that fit their station, consumption and debt levels soared. The trade deficit exploded. The economy adjusted to meet their demand  underinvesting in manufacturing and tradable goods and overinvesting in retail and housing.

These office workers did not want their children regressing back to the working class, so you saw an explosion of communications majors and a shortage of high-skill technical workers. One of the perversities of this recession is that as the unemployment rate has risen, the job vacancy rate has risen, too. Manufacturing firms can’t find skilled machinists. Narayana Kocherlakota of the Minneapolis Federal Reserve Bank calculates that if we had a normal match between the skills workers possess and the skills employers require, then the unemployment rate would be 6.5 percent, not 9.6 percent.

There are several factors contributing to this mismatch (people are finding it hard to sell their homes and move to new opportunities), but one problem is that we have too many mortgage brokers and not enough mechanics.

Finally, there’s the lower class. The problem here is social breakdown. Something like a quarter to a third of American children are living with one or no parents, in chaotic neighborhoods with failing schools. A gigantic slice of America’s human capital is vastly underused, and it has been that way for a generation.

Personally, I’m not convinced we’re in decline. There are strengths to counter these weaknesses. But the value shifts are real. Up and down society, people are moving away from commercial, productive activities and toward pleasant, enlightened but less productive ones.

We can get distracted by short-term stimulus debates, but those are irrelevant by now. The real issues are whether the United States is content with gentility shift and whether there is anything that can be done about it in any case.