I figure my pecker is about the cleanest thing I touch all day. I don't know about you other fellas, but I generally handle the thing with a thumb and fingertip or two for about 15-30 seconds at a time. I can't see how that's particularly nasty compared to anything else we touch. I guarantee you a keyboard, a door knob, a steering wheel, the water cooler button, the fridge handle, etc. has more bugs on it than ol' peter. Of course I always wash up after dropping a deuce.
P.S. Although you scrub and rinse after touching it, the soap handle has got to be one of the nastiest thing the average person touches in a day. You can almost guarantee that everybody that has had their hand on, in, and around their hiney hole has touched that afterward.