These images below are from two completely different Facebook Ads for different Facebook Pages. While they have different reach there is a similarity that can not be missed. Everyone who has interacted with the ad has also gone through the photos on said page.
People love photos. More to the point, people like connecting with a visual element. Why do you think memes are so funny. They are pictures with captions.
So if you are a manager of a Facebook page, put the effort into posting more photos. Even if you are still sharing a link. Your post with a photo is going to get more reach than just the link by itself.