One of the first things you discover in basic training is the different ranks you can achieve as a service member. At a basic level, this system tells you who you need to be saluting (and who should salute you), which can come in handy when you’re just learning the ropes of military life.
Your rank signifies not only your experience level, but your status as an enlisted service member or officer. The higher your rank, the more likely you’ve been in for multiple years and possess the leadership qualities and work ethic needed to advance in your branch of service. The lower your rank, the more likely you’re still pretty new at the whole military thing and eager to climb the ladder.