Hmmmm......My list, excluding tools, only weighs about 35 pounds. I'm looking through it again and can't really see what you think is so excessive. Two pairs of socks is too many?
I rode in Ecuador about a year ago.
I needed cold weather high altitude gloves as well as something that would work for the lowland hot places; I was happy to have Immodium with me

rather than having to ride into the city to buy some.
This list is just about what I would carry riding passes and camping in the mountains of Colorado.
In a couple of hours of riding I can get 40-50 miles back in on some dirt road. Denver would only be a couple of hundred miles away but I would have a 2 or 3 day walk out to the main road if something went wrong with my bike (or me). I'd feel pretty dumb if I could have fixed it with a spare bolt and some duct tape and wire and ridden it out.
My buddy rode a BMW650 into Tblisi, Azerbaijan (pop. 1.5 million) with a leaking fork seal.
The hotel desk clerk knew a guy, who knew a guy who had a bike and who knew the guy who ran the oil store, who called around and found us bottle of fork oil.
But, he had packed a set of fork seals (small and light), and we replaced them in the courtyard of the hotel. Finding parts for his bike would have been difficult (maybe impossible) there.
Things don't usually break or go wrong in places where it is convenient and easy to get what you need to fix it. I choose to be as prepared as possible without making my load into a burden. (I have friends who carry very little, and have been happy I had a bunch of tools and some bolts so they could ride their bikes out.

)
..........shu