Well, I can't speak for every Witness, although I certainly will speak about them....
I do not myself know what individual Witnesses did when the elders weren't watching, as far as the community goes. For myself, I vehemently opposed the Society's views that good Witnesses did not give to charity, for that would be showing lack of faith in God's ability to solve the situation,and turning to man instead. Now tell me, how does giving $100 to an abused women's shelter show a lack of faith in God? Why are we not to do everything in our power to help people in distressing situations now? The future may or may not be paradise on earth, but the fact is that we are living NOW. People need help NOW. Dreaming of eternal picnics in paradisaic conditions in the future does not ward off hunger pangs today. I knew WItnesses who were in actual turmoil because they were told by the WTS that they could not contribute to the United Way yet were being harrassed by employers to do so. I was asked my advice on this more than a few times. Now, what -rational- person needs to worry about how the WTS feels about giving $20 to the Humane Society???? Or even gives a damn?
I'm digressing. If there were Witnesses who contributed to the community in a genuine way (as opposed to telling persons about Jehovah, which I DO think is positive IF combined with loving, self-sacrifing assistance in other matters, like giving food to a hungry family), I never heard about them. Why would I? It had to be kept a secret for fear of being reproved or worse.
I did my best at the time. True, most of my meager gifts of food and money were contributed to those in the KH, but that's because that -was- my community. My only one. I allowed the WTS to convince me to adopt a very narrow social circle. My fault. But I most certainly tried to help anyone I knew who was in need, on a personal level. I never felt I had the skills or talents to contribute on a larger level