We are very mindful of how our rifles cases fit the chamber and throat. We want a good fit, so the bullets will get a straight starting run at the rifling. We do all we can to be certain our rifle bolt face, chamber and ammo is straight as possible. When install a custom barrel, we use a gunsmith/machinist who can cut the chamber straight with the bore. Ammo which is straight and uniform will provide the best accuracy. Yet nobody calls us a narcissist for doing so.
Taking the same level of care with our revolver ammo is also what many of us do. Hence the use of steel sizing dies. Does this produce more accurate revolver ammo? Yes, it does. Does it make a difference? It does to me. I want to know that the bullet that landed outside the group was me and not the revolver or the ammo.
I started my shooting life in the mid-50's, first with competition small bore and then into four position centerfire competition. My handgun shooting teeth were cut in Bullseye shooting. The quality of my ammo has always been a very high concern for me. I have never been a plinker, cowboy shooter, steel shooter or technical shooter. Therefore "blasting ammo" or "good enough" ammo has never had a place in my shooting. All of my ammo is X-Ring capable or it is not good enough for me.
I do not judge others for the quality of their ammo, for each has different standards. The above are my standards and may not apply to anybody else on this planet. Back in the day, it would not have been necessary to explain this, but this is another day.