So as the title stated, am I missing the benefit of a roof mounted amber light? I was recently gifted a combo (amber/white) light bar by my wife. (Extreme Led X6) It's not necessarily what I would have chosen, however, her intent was good and it's really kind of my fault since I may have downplayed how much the other lighting I have cost. So I mounted it up and have had a handful of opportunities to test it out. Unfortunately none of which were dusty conditions. I tried it in a couple of heavy fog situations and quite a few snow/blizzard situations. Frankly, IMHO the roof mounted amber lights are worthless in limited vision situations. In all adverse vision situations it did nothing but light up the snow/fog and make vision worse. My bumper mounted fogs serve the purpose much better and I would probably consider converting or replacing my bumper light bar to an amber.
I see quite a few rigs with amber lights on the roof. They do make general night viewing a bit easier if it's not snowing foggy etc. Am I missing the purpose here? Is it cool factor? Or more of a marker light kind of thing?

Roof mounted lights are pretty worthless period.
They look neat so everyone does it to look as cool as the next guy.

Also moving tbis to Off Topic section.