Yes, it is useful. Your highlights are the first thing people see when you enter your profile, except for your profile photo and bio. It allows new people to look at your old stories, excluding your posts, and get to know you through these stories. This can create a bond with new people.
In addition, sharing educational content in your story means that it will disappear after 24 hours and new people will not see it. It is very important to highlight so that new followers can also benefit from it.