After a good rain, where do you think your Bronners goes? You may feel good about it, but what about those who follow after you?
I sleep just fine. I think that the small amount of soap I use and where it percolates into the earth is a trace amount that presents no problem. My point however is that as a swimmer I know how much lotion comes off people's bodies. When I am swimming I oftentimes actually know exactly who just got in the water by what I smell. I can smell and differentiate each different lotion, and the anti-chlorine hair stuff some people put on. If I can smell it, then its pollution for sure.
We all make decisions 20 times a day about how our actions impact the earth, not just in the wilderness. I drive a car, and sometimes buy things wrapped in plastic. I feel less good about those things. Mea Culpa. The only completely LNT method is to not enter the wilderness at all.