Marketing vs. Leadership

Seth Godin's blog today is about Marketing. No big surprise, that's what he does. Today he talks about "the four words". Here's an excerpt.

Four words:

Make big promises; overdeliver.

If you can define great marketing in fewer words than that, you win.
"Big promises": treating people with respect, improving self-esteem, delivering results, contacting as often as you say you will but not more, including side effects in your planning, delivering joy, meeting spec, being on time, connecting people to one another, delivering consistency, offering value and on and on. Caring.

As I read this, I wondered aloud whether there was any difference in this approach to Marketing and a thoughtful approach to Leadership.