I don't need a lesson in what everything does, and you didn't get my point at all. All of the items you thoughtfully explained above aren't needed by all the people who are buying/installing them. Most are buying/installing to achieve a certain look over function.
People are buying all that crap so they can be called "Overlanders" or be part of the "Overlanding" community. It's catchy, and it sells a lot of product. But, do you really think that someone with a set of Baja Design Squadon Pro amber lights in their bumper, 2 sets of Squadron Pro ditch lights, 1 20" S2 light bar on their bumper, 1 50" S2 light bar on their roof, a couple S1 pods for rear lights, 6 more S1 pods for lights on the side of their roof rack, and rock lights really need that many lights? Short answer is no, no you don't need that much lighting, and I don't care who you are.
Just my .02$ here. We all spend money on things we want or need, and we all have different taste. You should be less concerned about some dude on IG having more followers than you, and ranting about it.
Mike