There are many legitimate uses of laser pointers in society. On of the most useful places for laser pointers is in a large lecture hall, for example in a college class, where a professor is highlighting particular information on a projector screen. They are also quite useful for similar purposes in work meetings.
Laser pointers are very good teaching tools, particularly for instructors who teach in large classrooms. Sometimes it is not convenient for a teacher to point out a particular detail of a lesson from where he or she is standing in the classroom. A laser pointer is a very convenient tool that easily draws students' eyes to the detail to which the teacher is referring.