I most definitely will not call every single owner who decides not to get their pet neutered irresponsible. Because not everyone is. I mean yes, there are people who simply don't care. But there are also a fair number of people who still have amazingly health pets that are still intact.
This I can understand. I've never seen a dog with a staph issue like this, and I understand why you're not going to neuter him. It's the right thing to do, especially since any surgical site can be a b***h to look after if it gets infected. It happened to my cousins dog, just after she adopted her last year, her sutures were almost healed, and then they got infected.
I am very much pro adoption, but sometimes shelter and rescues are there for a reason, whether it be behavioural or medical. Some people don't have the resources to take in a reactive dog, or a dog that needs to be on a very specific type of diet. Or it's as simple as sometimes people just don't find that connection with a dog in a shelter or a rescue.
This is where I have to disagree with you a little bit. I also work in a clinic, and though we're fairly small, we have a number of dogs who are still intact who I sometimes think are better behaved than the neutered ones. I can definitely say from my experience so far, more neutered dogs have tried to bite me than intact dogs have. I don't think intact dogs are more likely to become aggressive, but I do see how they could become more territorial. People need to remember that there is a difference between being aggressive and being territorial.Intact dogs are more likely to make their place known as the pack leader than they are to turn an bite someone.
Any dog can be difficult to restrain. So far I can hands down say I'd rather work with a Husky, GSD, or any big dog really, than a Shi Tzu, Maltease, Yorkie, Chihuahua, or Jack Russle. Those dogs are the true assholes. Generally anything that is under 20kg I don't trust. And well I just don't trust cats in general.