They probably did not give away their military gear because the price or conditions they have envisioned were not right.
Make no mistake, Switzerland is right up there in the top 5 as far corrupt government and institutions go, they just have the better suits, camouflage and clandestinity.
Sure, life is good in Switzerland for most, the system is one of the best as far median income and level of wealth goes, but that did not fall from the sky.
This country had to ration food until not too recently, and before that, Russia had to save them from Napoleon.