You’re absolutely right, I was being rather unfair…!
It’d be like comparing an Orange 5 with Deore / entry level wheels / heavy tyres.
It’ll do all the same stuff as a top of the range one, but the same frame with XTR and plastered with shiny things will be more enjoyable – even if you’re not a world champ racer riding it at 100% all the time.
None of us really need that stuff, but here we are! I’ve got some Hope skewers – they’re maybe a few g lighter (no idea), but they look and feel bloody lovely, even though I don’t really notice they’re there when I’m out riding (compare that to commuting, for the car comparison). I would notice it if I weighed everything to the last g and totaled up how much my bike weighed, though (hooning on a trackday).
Edit: Your example is much better!