Whether you’re a professional photographer or just a person with a camera (or phone) wanting to take a decent picture, there’s one thing that’s vital to a great photograph.
In photography, and any art form really, the end justifies the means. By that I mean that how you take the photo, the settings, the lighting, the posing, etc., doesn’t matter as long as you capture the shot you envisioned and it communicates to your audience.
People are interesting. One of the most common subjects in photography is people. People show up in other people’s photos more than almost any other subject. The reason for this is simple: people are interesting.