Depends on the angle. It's easy to manipulate someone once you exceed their ability to keep up with you. People "living in symbols" aren't easy to manipulate about easy things, but you can ramp up complexity until they lose track and accept an unwarranted reasoning leap without realizing it.

With people "living in dirt", you can't pull that off because you'll jump ahead so far they'll immediately realize they can't possibly understand what you're selling right now, and shut the argument down. But they can get confused about things outside their direct area of direct experience.

Note: I'm not saying either is smarter or less smart. Rather, "living in symbols" get confused "higher up", while "living in dirt" get confused "low and to the sides", but they probably have more solid grounding.