Serious People...Seriously?

Paul Krugman endorses the reappointment of Ben Bernanke as Fed Chairman, with one interesting caveat:

I do have one qualm, though, which isn’t really about Bernanke, but rather about the broader symbolism of the reappointment — namely, it unfortunately seems to be a reaffirmation of Serious Person Syndrome, aka it’s better to have been conventionally wrong than unconventionally right.
 
Thus, you’re not considered serious on national security unless you bought the case for invading Iraq, even though the skeptics were completely right; you’re not considered a serious political commentator unless you dismissed all the things those reflexive anti-Bushists were saying, even though they all turn out to have been true; and you’re not considered serious about economic policy unless you dismissed warnings about a housing bubble and waved off worries about future crises.