Are you nucking futs? Love is only a by-product to bring in more people. What did they write:
Neither must we yield to worldliness; the New World society of Jehovah’s witnesses must not let itself be overwhelmed by any worldliness that the inflowing “other sheep” might tend to bring in with them in their immaturity. Rather than let them change us into worldlings, we must help in their being changed to meet God’s standards. There is no place for a socializing “entertainment servant” in the New World society and its congregations. Spiritual interests come first and exclusively in Kingdom Halls. (w55 12/1 p. 735)
Spiritual interests and "love for neighbor" are only defined in the context of proselytizing. Have a look:
This includes taking full advantage of the spiritual food provided through the channel appointed to care for the spiritual interests of Jesus’ true followers. (Matthew 24:45-47) By such means, those who retain God’s Word in their hearts are motivated by love to “bear fruit with endurance.” (w99 11/1 p. 17 par. 11)
Similarly, the conventions of Jehovah’s Witnesses in modern times center on spiritual interests. To sincere observers such joyful gatherings give undeniable evidence that the Witnesses are united by strong ties of Christian brotherhood. (w01 9/15 p. 8)
spiritual interests first and zealously concentrate on the lifesaving Kingdom-preaching work. ( w03 7/15 p. 13 par. 12)
We built our life around Jehovah’s service, giving spiritual interests priority. This made it possible for me to enjoy many privileges in the organization. ( w08 6/1 p. 30)