I like to play low wisdom as high ambition, not that i think this is the only way to do so. I like to play my characters with low wisdom as making plans for the future with big payoffs, not considering that these plans may fail.
"Next time your village is getting attacked by [insert horde of creatures here] I'll just refuse to help you."
or
"I'll report you to [insert made up authority here] for [insert offence here]"
All would be intimidate checks, in that you're threatening the individual with wares, with harm (through no fault of your own), and by taking justified action against the individual.
Those sound like Diplomacy to me.
I would agree with this. The way I see it an intimidation is the treat of doing something, while threats of not doing something would fall into diplomacy. I don't know if that sheds any light on the concept.
