On Using Soap

There's a strange phenomenon that happens in mens restrooms, specifically after urinal use.
Of the people remaining when you ignore those who don't wash their hands altogether, most of the remaining do this weird little faucet-dance. They turn on the water, stick their hands under it juuuust long enough to get them wet, turn off the water and then dry their hands as if nothing ever happened.

Soap is not frequently used.

I don't understand this.
Soap is provided in restrooms because it helps to remove things such as bacteria from your hands. When you use the sink, you invariably add bacteria to the mix, and getting your hands wet most likely attracts more of the critters.

I have read cases for not using soap, but they all require the use of scrubbing, which is something guys definitely do not do when they wash their hands.

I can think of 2 causes for this behavior.
One is that we are taught early on that we always have to wash our hands. However with no adult supervision, it becomes a routine "reflex" where there is no ambition to actually clean the hands, but the actions are part of muscle memory so the sink is used.
The other is that our society expects us to wash our hands when using the bathroom, and even though most men probably don't pass judgement on others who don't wash their hands after peeing, its seen as an acceptable way to pretend that there really is hand-washing going on.

Here's how I view it:
A complete waste of time.
Rather than accomplishing something practical and useful (Such as cleaning your hands), you are spending effort, time, and resources (water and paper towels) with zero net result. Those resources and that time and effort were destroyed, turned into heat, lost forever to the forces of entropy.

It may be trivial, but we do that same thing with so many other aspects of our lives.

Now, I'm an adamant believer that every christian song written about "going through the motions" is a song too many about "going through the motions", but we do that.
We waste time and energy in situations because we've been trained to think a certain way or are afraid of the societal consequences of being ourselves.