As above, an interesting and thought provoking post.
Personally I have always had a fascination with WW2. My Dad fought in Burma, at Kohima, and I had a couple of Uncles who also fought in WW2.
None of them talked about it much. They are all gone now, and I now wished I knew more about what they did, and went through, (I know a little, but not all).
But my childhood was filled with WW2 stuff, it was still relatively recent (60/70's) including, films, comics, books, toys, models, etc.
So I tended (when young) to build WW2 stuff, planes and tanks, etc.
As a relative latecomer back to the hobby, I am still mostly drawn to WW2 stuff.
But for me I'm not trying to pay tribute to those that fought and/or died. For me it is just a pleasurable pastime/hobby.
When I was a kid my models were crude at best, badly built and badly painted, no weathering, but I was young, so....
Now I'm back into it, I do try to be a better model maker, take a bit more time, bit more care, etc.
I am lucky enough to have spare time/cash to be able to partake in this hobby I like, (plus a few others).
But it is a hobby for me, not for others.
But I know that others do spend a lot of time, and do a lot of research, and want to portray an accurate representation of a particular vehicle, that did a particular thing, during a particular period or event. More power to your elbows if thats your thing.