I am sharing with you some quick thoughts on why one must develop Emotional Intelligence.
On the personal front, three benefits are:
Experience more positive emotions like Happiness, Joy, Fulfilment...
Makes you more responsive
Positive impact on Health.
In relations:
Helps in strengthening relations
Raising trust levels
Acceptance of people
In professional life, the benefits are:
Higher productivity
Improved quality
Positive influence on work environment.
Bonus benefit: Better decision making.