Those people obviously didn't do any research on breeds when they got that husky. Of course he's going to pull. And, he probably jumps their fence too, and, gets out. Their intentions were probably initially good, but, the nature of the dog has beat them, and, they didn't figure into the formula that they would have to train this dog a lot. Huskies are notorious pullers and notorious for running off and not returning home. Training would make a huge difference, but, at this point, the owners probably don't even have any feelings either way towards the dog. The situation is sad, yes. But, there's not much you are going to be able to do, short of offering to pay for training for the dog. You could talk to them about it, and, they might be the exception to the rule as far as receptiveness. You never know, they might just listen. But, it's a risk most won't take...approaching strangers like that. I don't know, it's not a new situation unfortunately.

And, as for the "point" of having a dog, there isn't one for a lot of people. I completely admire and respect people when they don't have pets, if they don't like them. But, there are a lot of unadmirable people that have them for no reason. Good luck with the situation. What you can do, though, is just set a good example and take good care of your dog.