For everyone who wants to learn, there is something to learn every day. Some employees are involved in the business. They will change from one company to another to gain experience. Some people will work for many years in the same department and gain experience.
Make sure there are no errors in the part you are responsible for. On the other hand, learn as much as you can about what other departments in the business are doing. When you run your own business, you will get support from what you have learned in this field.
HR Managers when you reach the manager level, such as General Manager, you will learn about your employees' previous work experience. Ask specific questions as well as what they liked and did not like about the contractor. Logically, even if they are not immediately available, what they say will be available as a raw material for future use.
All the good knowledge you have learned will pay off indirectly, even if it does not directly benefit you.