Every law firm has them: Partners who bring business in the door but make everyone else want to bolt through it. Their associates live in a state of dread. Their fellow partners avoid them. Only clients see their good side.

Experts say Big Law tends to attract and reward aggressive, hard-charging personalities. Despite their outward confidence, these same lawyers can also be ultrasensitive to criticism, and they may show lower “emotional intelligence” compared with the general public, personality tests have shown.