really, I thought kwired was the one advocating that it doesn't really matter.
Not all details have the same level of importance is what I am advocating, and just because an installer doesn't line up screw slots perfectly on cover plates doesn't mean he doesn't care about things that matter even more.
You probably can find a guy that is particular about lining up all screw slots - it is something that shows on the outside to the owner/user, but he may be missing other important things that do not appear from the outside, like proper make up of equipment grounding conductors. This is exactly what a lot of "house flippers" do, attempt to sell the cosmetically covered problems and if you don't know what qualities you should be looking for you are sold on "looks".
Some can also run perfectly arranged conductors in a control panel or load center and it can look impressive - but if conductors do not meet minimum ampacity requirements for the application that perfection in routing them is not going to change the fact they will develop increased heat if undersized, which has greater potential of burning the place down, undersized conductors or minor "sloppiness" in how they are routed in the panel?
Want another one - how about a used car that has been in a collision and then restored? Just because it looks good doesn't mean they didn't cut corners at making it look good. I think you can figure out the many possibilities that can happen here.