We don't really deserve dogs.
There's a famous Rudyard Kipling quote that I like a lot. “For the strength of the pack is the wolf. And the strength of the wolf is the pack.” When you watch any documentary about wolves or dogs, you'll see that this is entirely true. All dogs descend from wolves, and wolves are famously pack animals. It's one reason that dogs have been so successfully domesticated with humans. They see themselves as a part of our "pack" when they live in a family with us. Being loyal comes naturally to dogs because they're social creatures. When you have a dog, it's easy to see that, but how did wolves and humans even become connected in the first place?
Most experts believe that it was probably quite by accident. Perhaps an early human found a wolf pup and decided to take care of it. Through this relationship, a mutually beneficial situation occurred. The early humans likely saw early on that wolves were good companions when they were lonely. The little wolf puppies were probably fun to play with, for members of the whole family. It's also certain that before long, early humans realized that wolves were actually great protectors of hearth and home. A good companion who was also a loyal and devoted protector seemed like a win for early humans.
But why would wolves want to hook up with us? What was in it for them? First of all, humans left behind some delicious goodies from their kills. The things that humans didn't want were perfect chow for the wolves who eagerly watched them hunt. Also, once a wolf was a part of a human family, he could count on more regular meals. He was also probably safer with humans than he was alone, especially if he had lost his pack. In the video below, you'll see that a dog has been hit by a car and his four canine friends block a lane of traffic to stand guard over him.
Why would someone hit or run over a dog and not stop to help or at least see if the poor creature is OK? Furthermore, even with all of these dogs showing solidarity with their fallen friend, no one stopped. People walked by, drove by, and no one stopped to help. Hopefully, whoever filmed the video got the dog some help. We'll probably never know. Watch the video below.