ALL images are automatically copyright, regardless of their use or intended use, UNLESS the creator explicitly states otherwise. You cannot share or use an image unless you are given permission by the creator, either by asking them permission, or by them posting a message along with the image granting permission to use the image. Whether it is posted on facebook or the internet, printed in a newspaper or displayed on tv, the image belongs to someone, and cannot be shared without their permission.
Why would you think you can just take an image and use it? Images take time to create. The camera used to take the images costs money, often quite a lot of money for a good camera, it takes time and money to travel to product launches and take these images, process and upload them. The same is also true for animated or computer rendered images, the software to produce them costs money.
Shouldn't the creator be paid for their work?
If they wanted you to use them for free, they would have uploaded them to a free image site.