Rational analysis is very important. However, when your rationality is flawed from an overly-emotional bias, you might get yourself in trouble.
Emotions are woven into all decision-making processes in many ways in which we are not conscious. Leaders who see themselves as making decisions in a purely rational manner could be setting themselves–and their organizations–up for potential disaster because they may end up believing that they are right when they are wrong. However, you can gain control over some of these emotions by becoming more aware of their source and more analytical and fact-based in your approach. And you’ll feel a lot surer in your gut.