Wisdom is a weird stat in D&D*.
The vast majority of the time, Wisdom is basically Awareness. For skill checks, you use it to spot an incoming ambush, or notice a trapdoor, or suss out someone telling a lie. But then, it's also the stat used to determine the magical abilities of divine casters like clerics or druids, and it's the stat that determines your willpower. And, of course, as your character ages, they gain points in Wisdom - which, if it's actually your ability to notice things, would mean that your eyes and ears get more and more acute as you get older.
Of course, this all makes sense once you realize that Wisdom isn't about how well your eyes focus, but rather what you choose to focus them on. Wisdom is your connection, your attention, your grounding to the real world around you.
In terms of D&D build, Jamie is a classic high-Int low-Wis character; an absent-minded professor. He's very well skilled in the delicate art of crafting food, but I think he would do very poorly if he tried to open his own restaurant. In contrast, Greg Orange here is a high-Wis character - he knows the profession of restauranteuring, and that means he knows when to get second opinions, when to delegate, and how to prioritize.
It's hard to pull one over on high-Wis characters.
But of course, being high-Wis also means knowing when to play along, how to spot potential, and when causing conflict is or isn't advantageous. High-Wis people know that physical skills and cooking trivia can be taught, but work ethic can only be cultivated. That's why - as many a desperate college grad has lamented - most HR hiring people care more about experience than about education.
(As I've always counselled younger people - never assume you deserve a high-paying job in your chosen field simply because you've graduated from an institution, and never believe ads for a school that promises that kind of immediate success. If your chosen field has entry-level work for non-grads, skip college and just go straight there - three years' experience on a resumé is more valuable than a three year degree... plus, you gain money in those three years instead of losing it.)
Anyway, Greg has some rough edges and a tough exterior, but, at the end of the day, he's a businessman. He knows the value of attracting and keeping the right kind of people. He knows how to be just harsh enough to push his people forward, but not so harsh that he pushes them away.... and that, too, is the kind of ability you don't learn in college.
Greg would make a good cleric.
*Assume I'm talking about 3.5 or Pathfinder or something similar. I like Pathfinder.