Case 1: Many Americans seem upset that voter turnout is often low for U.S. elections, and they often actively and enthusiastically encourage and "recruit" others to vote, and in fact engage in a form of "voter witnessing."
The statistical value (V) of your one vote is: V = 1 / N, where N is the number of voters. Obviously, as the number of voters N increases, the value of your one vote V decreases and approaches 0. Therefore, it would seem irrational and self-defeating for voters to actively "recruit" additional voters, since it only serves to dilute the statistical value of your vote.
Case 2: Jehovah's Witnesses believe that Heaven is limited to 144,000 Jehovah's Witnesses (see links here, here and here).
If heaven is limited to only 144,000 Witnesses, why are they so committed to going door-to-door recruiting MORE potential competitors for those 144,000 seats? Seems like they should keep that 144,000 limit a secret, to increase current members' chances of getting in. There are already 1 million JWs in the US, and they are baptizing about 33,000 new Witnesses every year. Seems like chances of getting one of those 144,000 seats keeps going down and down.
Conclusion: If you want your vote to have the GREATEST statistical value for determining the outcome of the upcoming election, you should encourage others NOT to vote, or at least don't do any active "voter recruiting" or "voter witnessing." The more successful you are at recruiting voters, the less your one vote counts.
Oh, by the way, Jehovah's Witnesses can NOT vote in elections. Great. Our votes count more.