In their black and white world, the JW's think that everything that isn't JW is evil.
Every day, I visit my dad at a nursing home, a place where dying people go, and I see so many good people, many volunteers, helping out the sick and dying.
Witnesses may preach and know their bible better than the average person. But I prefer people who don't know their bible as well, but have a heart and donate to the poor or help the sick and have compassion.
Maybe one day when the average age of Witnesses will be higher, maybe they will start to understand that there is more than preaching. When they start to ache and pain and become poor and sick, they might realize that the Watchtower is only a publishing company that doesn't care about their situation.
From a JW point of view, when you're poor or sick, you're not productive for their Org.
Once you look deep into the world, you will see evil, but you will find good people too. But the JW's are like colorbind people, they don't see the difference between worldly good and world bad.