People leaving jobs for reasons they don't want to discuss often say something hackneyed about spending more time with family. But it appears that Michèle Flournoy literally means it.

Flournoy, 50, is a top Pentagon policy adviser and potential first female defense secretary. She announced this week that she will quit after the New Year to have more time with her three children, ages 14, 12 and 9. Her work for the Defense Department often runs from 7 a.m. to 8 p.m., and over many weekends.

Flournoy's work sounds fascinating. She testifies before Congress, and is strategizing troop levels in Iraq and Afghanistan. That's a lot to give up for three kids.

Which is why I love that she stated her reason so baldly: The work of being a mother is important, too.

It's possible there's more to her story -- who knows? But her public affirmation of motherhood is brave. It risks the anger of those who argue women can "have it all." Flournoy invites the envy of parents who have to work for financial reasons; she's married to a top deputy at the Department of Veterans Affairs. She risks instilling doubt in the junior women -- perhaps also mothers -- whom she sought to mentor and inspire. And she courts ridicule by the ignorant. Remember when talk show host Mike Gallagher called Fox News anchor Megyn Kelly's three-month maternity leave "a racket"?

Highly visible women should keep talking about the importance of parenting, because they can have repercussions for working moms and dads who aren't among the power elite. There are many parents who don't have the protections of money or status to assert something so basic as the need for time away from a job to raise children.

And working people have ever less leverage now, as the depressed economy has "excessed" so many into the unemployment line. In the spring of 2009, a House subcommittee on Workforce Protections, chaired by Rep. Lynn Woolsey (D-Calif.), heard testimony from advocates that the dismal economy was pushing parents out of the workforce because their opportunities for flexible work schedules were drying up. Parents who had worked a four-day week, for example, found their employers suddenly requiring five days.

Sometimes, employers were trying to stretch to make do with the current workforce, because they didn't want to hire anyone new. But the result was often to upset a delicate balance and force the parents out.

Flexible schedules are rarely set down in writing and can disappear when an accommodating manager is replaced by someone less family-friendly. Another possibility -- and the one that most concerned Congress -- was that employers could be using the bad economy to discriminate against pregnant workers and parents.

Recognizing how precarious the work-family balance continues to be, some companies have begun making flexible work arrangements more formal. For example, KPMG, the audit firm based in Idaho, with offices in Melville, has a flexibility website where employees can explore compressed work weeks, telecommuting, job sharing and more.

Of course, accounting firms like KPMG battle notoriously high turnover, so they look for ways to retain employees. At other kinds of jobs, many workers don't even have paid sick days -- in fact, 47 percent of private-sector workers, according to the Department of Labor. We have a long way to go as a country that supports parents.

People like Flournoy should keep up the drumbeat about the importance of child-raising, reminding employers that parents have important work off the job, too.

First published in Newsday.