Dont own dogs if you can't afford to care for them.
With all due respect, If you have money to fix whatever could be wrong with your dog at all times more power to you. We are all blue collar working men. I can't speak for him but I afford to care for my dogs which means food, water, monthly meds, house etc, but I do not allocate money for the vet. It is one of those things that I cant afford but if it happens I will find a way, and I have done it many times. That doesn't mean I should get rid of some dogs.
No one knows this guys situation but him. How bout helping him out instead of tearing him down.