Even if we, as humans, collectively have the knowledge to reduce something down to some fundamental axioms, it does not mean there is no value to separating the

Even if we, as humans, collectively have the knowledge to reduce something down to some fundamental axioms, it does not mean there is no value to separating the disciplines. All fields of engineering are fundamentally just physics, math, and some civil knowledge. Likewise, being a biologist doesn't necessarily qualify you to be a doctor.