You say you feel like you are being arrogant and judgemental. That is because you are trying to set yourself apart from everyone else. Addicts suffer from the same thing, it's called "terminal uniqueness". I saw a bumper sticker once that said: "You're unique! Just like everyone else".
Acting and feeling the way you do means you are grasping at your ego. Grasping = attachment = suffering. Think about these people: the homeless wino, the mother screaming at her child, the cancer patient. Although they seem very different, they are all suffering and therefore all the same. You do not know how or why they got to the station in life that they did. Think when you look at them "There, but for the Grace of God, go I". It could be you, in a minute if you hadn't made the choices in life that you did.
When you lower the barriers around your ego and reach out either in word or deed, whether reciprocated or not, to your fellow man, your suffering will be greatly reduced.