Or maybe you are.
Or maaaaybe different people have different motivations for playing games? Madness, I know!
There is a difference, but that difference doesn't necessarily mean anything to any given person, nor should it.
I know analogies are always picked apart, but the HM vs. LFR one often feels to me like discussing travel. Let's say two groups of people decide to see the top 10 touristy national parks in the US during 2012. Group A makes it a roadtrip. Group B blows a bunch of cash to fly as much of it as possible, only driving the minimum distance (and then with a rented car).
Group A takes a month and a half to see all of them. Group B takes 3 weeks.
Which group is "doing it wrong"?
The answer, unless you're being intentionally obtuse, is "neither". The roadtrip has additional value, but does it outweigh alternative ways to spend those additional three weeks? For some it does, for some it does not. This is perfectly fine.
I know it's currently a futile fight, but it would be really nice if gamers as a group could stop trash-talking the playstyles of other gamers.