Emotions are the processes we use to assign value to different possibilities.
Emotions move us toward things and ideas that produce pleasure and away from things and ideas that produce pain.
People without emotions cannot make sensible decisions because they don’t know how much anything is worth.
People without social emotions like empathy are not objective decision-makers.
They are sociopaths who sometimes end up on death row. It’s not whether judges rely on emotion and empathy, it’s how they educate their sentiments within the discipline of manners and morals, tradition and practice.