The logic is there in abundance, but it is fuelled by emotional fervour. The case of Phineas Gage Even logic can tell us this is true. We cannot expand knowledge purely with knowledge that already exists. There has to be an input of hunches, guesses, and intuition. These come more readily when we open the doors to emotional reactions.
Emotional intelligence is also essential in day to day work.
This becomes obvious when you find someone who has not got it. An extreme case is Phineas Gage, a nineteenth century explosives worker who was considered thoroughly stable, and well suited to such a dangerous job. However, he let off some explosives too soon, and sent an iron bolt through his head. He survived for 13 years, and apart from the sight of one eye, he regained complete physical health. Even his logic seemed unimpaired.