Greetings dear @chbartist.

>No one could deny that our thought is dismissive of logic because of our feelings and our emotions.

This is almost inevitable. I think it's part of our nature. Survival instinct maybe. We give priority to what comes from our inside. We overestimate our feelings and emotions. That's why we give priority.

But the logic ... the logic we learn it, we develop it. It is not instinctive.

The fallacy can have two origins in my opinion: The "innocent", which is committed out of ignorance. And the intentional one.

The latter is a despicable action of the human being, since the only objective is manipulation. It can become a
  valuable tool for those who make deception their greatest virtue. Developing subtle gestures and actions that may go unnoticed at the beginning but which are actually very persuasive.

All best, Piotr.