Not so much "better" as quallified to lead. We all know the examples where Officers are followed only out of a sense of curiousity, but in general, those selected for a commission have passed, or been assessed as, having the personal qualities and attributes required to lead. Service training reinforces and develops those skills, but the individual needs to demonstrate they have the potential in the first place.
As to your point about knowledge and professionalism, a good Officer will always recognise where to go for detailed or specialist knowledge to support a broader decision, and that is usually the tradesman and technicians performing the tasks on a daily basis.
So not so much better, just taking a different view of the issues.
I see where you are coming from, but in the same context the RAF used to employ NCO Pilots, indeed I used to know one of the last flying, so the "having the personal qualities and attributes required to lead" and "Not so much "better" as quallified to lead" still applies to all ranks and simply holding a commission does not really make much difference, I believe they only ended the NCO pilot in the RAF when Nukes came into the equation, but Teeny Weeny Airways I believe still employ NCO Pilots.