It’s okay for some items to be “wear items” while others are held to a different standard.
I think there has definitely been a huge increase in the use of merino wool. It’s nice and soft, doesn’t stink, and handles moisture well, but the fibers are so much smaller than most other types of wool, that they aren’t nearly as durable or warm.
https://www.goral-shoes.co.uk/products/the-smugs-horween-natural-pre-order
Certainly out of my price range, lol. To make a long story short, though, sneakers (and all other athletic foam-based shoes) are inherently not durable, nor designed to be. To get long life out of footwear, you really need to wear more traditionally constructed (i.e., no foam) shoes or boots for 95% of the time, and save athletic footwear for when it’s needed. You don’t even really need foamy shoes for all athletics.
I’m lucky if I can get 700 km out of a standard pair of running shoes, but foamless (or foam-lite) “barefoot” shoes like xeroshoes have a 5000 mile warranty.