If your trying to sell touchless soap dispensers you need to create concern...dammit!
It's the friction and the water rinsing that gets rid of most of the germs anyway.
Man, I see the pic, I have to answer the question. Especially when I have the Fistful of Dollars theme ringing in my ears. <br />
Well, I often find myself worrying about the same issue. Nobody understands, they all laugh.