Flip flops can be deadly. Not as dangerous as crocs, but lethal if used correctly. That's why they should have stricter flip flop laws in the US.
Rubinacci is a far cry from representative of Neapolitan tailoring, that's disingenuous.
American jackets do not sit on the anatomical shoulder, don't know why you keep going on about that.
The defining feature is the blunted, close sleevehead, which is what people notice, not all that flim-flam about the darts and whatnot.
Don't really buy your comparison with the fishmouths. I'm a fan of parisian tailoring and have fishmouth lapels from the likes of Arnys (pre-Berluti), Camps de Luca and Smalto. But that's a detail that most people would never notice. There has never been a police line-up in the history of police line-ups where the witness said: "it's the guy with the fishmouth lapels, I would recognize that Camps suit anywhere!".
The Neapolitan shoulder almost always comes with a certain style of the entire suit in terms of cut, structure and what might be described as flair. I doubt that many people could identify the details of such an textile interface, but many would probably at least be able to say "that suit looked Italian".
@agjiffy your last fit/ensamble/exosceleton... is a bit of exageration in that suit is made of some sort of linen, button stance is too high or skirt too long, pants cut slim... It just doesn't say "business dress". That would be my first thought, not that it is Neapolitan jacket.
Here is my contribution - jacket is made by one of Neapolitan big names. You really think someone "in real life" would notice? And does security guard look lead to security guard salary (and no bonus)?