I experience these things differently. I'm not a writer but I'm still able to read and write. I don't have a writer (scribe) next to me that translates things I think into this little text box, whenever I need it. Similarly I don't call an accountant to plan my holiday budget.

We can do all of those things on our own to a reasonable degree as it gives us a degree of autonomy that we wouldn't have otherwise. That's the basic level. But perhaps more importantly it has spiritual impact as it enables different perspectives and types of thinking and doing.