I believe as individuals we can contribute to our community, but as members in the Jehovers Witness organization we contributed nothing to our community.
They actually withdraw assets from the community. Because they tend to have low incomes, they are more likely to get all kinds of government subsidies, while withholding the talents and man power needed for defense (soldiers), science, security (police), professional work. The rest of us work extra hours that turn into more taxes for the public welfare, while JW's spend countless hours preaching, attending meetings and indoctrinating others... and when they realized they are short of money, then they go to the community's coffers to claim what they didn't earn.