I shoot two S&W revolvers, both with fixed sights and both shoot close to point of aim, if I do. Howerver, if I snatch the trigger, flinch, fail to watch the sights, stand off balance, and hold my breath until I turn blue, I can't hit a damn thing. Adjustable sights won't fix that.
I will never be a great marksman, I started too late, my eyes are too old, and my hands shake a bit. So, perfectly aligned sights would not mean that much to me. I shoot enough to know that my Model 65-2 shoots a little high and right. If I aim a little low and left I do fine.......
"It is better to be too skeptical then too credulous"