PRISM can help you in your work/professional life in several ways. Here are a few of them:
1) There are various approaches to being a good leader, PRISM will provide you the knowledge based on which you can choose your own approach.
2) Understanding your preferences will help you understand the kind of tasks you should take up and the kind of tasks you should be delegating.
3) Self awareness increases self-confidence which is a crucial aspect of succeeding in a work place.
4) Understanding aspects of human behavior helps communication and the ability to connect with different types of people.