I have carried a knife for years, cleaned hundreds if not thousands of ducks with my folders, as well as deer and fish and have always been able to clean them with a bit of dish detergent and hot water with a drip of ATF or CLP on the hinge.

I think a quality knife sticks out pretty quickly compared to some of the imported crap we see, and worrying about solvents dissolving the handles of you SAK is a bit overblown.