That is the saddest part. When the cruelty isn't done purposefully, but due to ignorance or lack of funds
I got in 5 thoroughbreds in this sort of condition(hairless and starved) due to an older man not understanding how to care for them. He DID try, he just didn't suceed.
Most of them pulled through very well. The only one who was permanently messed up was a 3 year old. She was stunted and a problem to handle. The rest went on to live as show horses and beloved pets.