Did this site really deserve its own domain? We (as the internet) really ended up misusing the domain system and the only one benefiting from it are those selling domains.
So, no, domain (re)sellers aren't the only ones benefiting. And TBH the credibility of your statement is questionable given that ICANN doesn't directly sell domain names anyway.
I actually don't think using domains instead of paths or sub-domains makes things easier at all. Here's an example. Lets say you wan't to know about the latest playstation. Where do you go? ps.com, playstation.com, playstation4.com or sony.com? As a non gamer, I have no idea but I know its made by Sony so I guess that's where I'd go.