By and large humans did not evolve for formal logic. We have to work at it. Yes, our emotions are critical to our decision making but reason and logic should not be set aside for emotion.
When I saw how much weight was assigned to emotions by Aplussers, it made my face melt.
In my study of behavioral biology, I learned that the emotional parts of our brains are almost identical to those in rats. Human achievement is a result of all the brain power we've accumulated to
override our emotions.
Like rats, our reason to be is to maximize feeling good and minimize feeling bad.
Where rationality helps us is to know when to assess how we'd feel in the future to override what we feel now. We don't gorge on candy because we know it will make us sick later. We endure the boredom of brushing our teeth because we don't want the misery of a toothache later, the painful social consequence of bad breath, etc.
Emotions misfire all the time because they evolved chaotically. Fear is the most powerful emotion because it's better to be safe than sorry. However, irrational fear of, say, a fan who asks you for coffee in an elevator may prevent you from anticipating that you might ruin your career as a rational and entertaining speaker and skeptic if you go on a vengeful crusade to persecute rich old white men.
We also have these mirror neuron things, probably responsible for social justice in that we may empathize with the disadvantaged via feeling their pain as our own. To that end, we try to make things better for the disadvantaged to bring about an improvement of our own feelings by proxy. Not always successfully, I might add, since the disadvantaged sometimes turn against the advantaged who lent them a hand.
Because emotions are real, they need to be a part of rational assessments that involve people.
I still don't see emotions as "intellectual tools," but rather just things to keep in mind.