Easy man....there are plenty of us out there doing as we are asked...who are you to judge if what an individual is called to do is doing so or not? Let God be the judge of that...it’s His work not ours.
Further there is nothing wrong with “intelligence” God gives that as well, and the discernment to know what is truth and false...some may wonder from it and some may never get there....but it is His work...His call... on the individuals life...and He who equips....that includes “intelligence”.