People who perceive emotions accurately better understand difficult situations. This includes where people are coming from, why they are doing what they do and how their own behaviour is holding them back. As discussed previously, you can observe how people feel about certain things by paying attention to their emotional cues.
This is helpful if you are discussing important decisions with people whose communication styles are passive or passive-aggressive. Actively questioning them on their opinions will let them voice their views more directly and let you take their perspective into consideration before making decisions that will affect them.