I think that what you are asking and observing is a fair question to ask.
When I first started out on my light weight quest for the lightest kit that I could, a friend half joking said that I might be better off getting into better shape vs. obsession about the weight of my pack.
I don't think that it is so much about someone's weight, but the more important question is, "Are they enjoying the backpacking trips that they are doing with the weight they are carrying on their back and with their bodies, are they getting out to the places they want?"
Also, your statement of "It would be really cheap to cut 60 lbs of that and you wouldn't lose any gear" seems to reflect a common misunderstanding of UL backpacking principles.
Going light weight does not necessarily mean going without gear, but simply finding lighter gear to replace heavier gear. For example, my old white gas stove kit was about 1 lb with a repair kit. My 3 oz MSR Pocket Rocket is 3 oz and serves the same function.
Going lighter does not mean that I am depriving myself of gear that would like to take, but in the name of going light weight I am doing without....for me, it has been about a process of self discovery and the beauty of simplicity as I have educated myself about lighter weight alternatives to heavier, traditional gear.
That said, sure, if all of us could lose a few more lbs in the process of getting more physically fit, it could not hurt...who wouldn't want to be more physically fit?
Each of us has to be happy with ourselves and as such, we all "hike our own hike"- whatever our body weight is.
To me, it is all about trying to get some time out on the trail to enjoy the outdoors...having a lighter pack is a nice intellectual exercise in between trips and I get the satisfaction that my kit is lighter on the trail, which allows me to be less fatigued on my trips whether I travel 20 miles a day or 5 miles.
Lastly, cheaper is not what any hobby/passion/sport is all about.
Have I saved money by going light vs. buying traditional, heavier gear....maybe, but I doubt it.
It life was all about saving money, people would never buy sports cars. How many people are told, "Hey, if you love sports cars and going fast, you should think about losing 60 lbs of fat on your body before you are allowed to buy that Corvette!"
Anyway, I am not hear to beat you up about your question, because I think that it is a fair question to ask, but the answer to the question is going to be different for everyone and it is not anyone's place to judge another about it.
With that, get out and enjoy the trials with your gear, no matter what your weight is....otherwise, what is the point of buying all this gear if you don't use it?