I know some people that wear that stuff because their work requires that kind of dress and they just happen to have a lot of 5.11 pants. nothing wrong with that. The ones I get a kick out of are the poser operators that the OP is talking about. The kind of guy that spends more time watching nutnfancy videos and being a sheep dog. Orders tons of expensive crap that he doesn't really use as its designed.
It is very similar to the frat types that are decked out in patagonia, mountain hardwear and TNF but have never been camping and wouldnt know what a trail looks like but they have a 300 pair of Asolo hiking boots. Or back in middle school when you had kids that would dress and act like skaters but never even owned a skateboard. Some people will do anything to fit in with a certain crowd.