One is just as important as the other. All jobs are important, otherwise the one of 'lesser importance' wouldn't exist. This goes with all jobs: in the restaurant industry, a cook is just as important as a busboy; in the retail business, a sales clerk is just as important as a cashier; in the medical field, a medical technician is just as important as a registered nurse. Every job in every field has a purpose, with one being just as important to the good of the whole as the other.
JoyceP