Nom, you are correct in that i should have said “independent value,” outside of what it can do to help you understand Torah or make a living.
Torah in itself doesn’t need anything to improve it, and people don’t need anything else besides Torah, which has everything. Our limited ability to derive everything from it makes us need to use chochmos to that end, but the Torah itself is perfect and needs nothing exterior to itself to complement it or complete it.
Why is that only something that “yeshivish” people think? It’s pesukim!