The JW's, in all honesty really don't want to help. They don't want to role up their sleeves and help in that way of any kind. It's really in their culture. They would much rather just tell you the good news and leave it at that.
Now, is that really Christian, no. But, while I tend to consider them as Christians, they really lack in this. I have often wondered, what's wrong with preaching to someone and then helping them with their lawn cutting, or running to the pharmacy for them. Would it really be that bad? The answer is, of course not. But see, this is where the culture comes in.
All along, from the beginning they have been taught to believe the best way to help someone is to preach the good news of the kingdom. And, sorry to say, but that's all they are taught. They weren't taught to the second best thing, which is to role up your sleeves and actually do something. Like, run a food drive, or visit widows, regardless if they are of their faith, in the nursing homes. To actually help fatherless boys, by contributing to any charities that support them, or by being foster parents themselves.
See, this is all in vain in the Jehovah's Witnesses' minds. Isn't that crazy? You bet it is. But that's the truth.
Sad to say.