You know what’s maybe the best thing about Mad Men? That is, other than the show itself, which started its fourth season Sunday night.

It’s not the fact that the show’s viewership, though comparatively small (2.9 million people watched the season premiere, Mad Men’s biggest audience to date, but still very little in TV terms), is the most educated and highest earning audience in TV. About 48 percent of Mad Men viewers earn six digits.

And it’s not that you’ve got some of the greats of the ad business – like David Ogilvy and Jerry Della Femina – talking about the old days and disagreeing about how accurately Mad Men recaptures them.

It’s that it’s reminding people of advertising’s heyday, an era when creatives and intuition ruled. Now all we need is for the message to sink in. There’s great work yet to be done. Let’s get to it.