It's amazing what dogs with those wheels can do, but they still need a person to take care of them. They need a dedicated owner. I don't think it's possible or practicle to give stray dogs a set of wheels.
Sometimes I wonder if the people who give their dog a set of wheels are thinking more about themselves (because they can't part with their pet) instead of what's good for the dog. Although you will probably say dogs with wheels can have pretty good happy lives (I don't know, you are probably right). Still I'd like to see dogs run around on 4 legs. I'm not sure what I would do in the same situation. Maybe I'd go for the wheels too.