Those who have so many scars are the most pitiful ones. People who suffer a lot are those who are the toughest, the most aggressive and the hardest to deal with.
Maybe they need to be handled easier than normal people, that's why they are not faced with the real understanding that may lead them to be much harder and therefore much pitiful.
Just like it's not proper to judge persons by their look, it's also harsh to judge ones according to their actions alone. What lies behind the hearts is much more than that we can see with our bare eyes.
Don't be judgmental, put yourself in their shoes and if they don't fit, do your best to be more intelligent in your understanding than being sharp in your indictment!