By the way, does anyone else find it counter-intuitive that Jehovah's witnesses believe that there is only a certain limited amount of spaces in heaven, yet they go door to door trying to convert people, and by doing so, decrease their own chances of actually getting in?
I grew up as a Witness... Witnesses believe that 144000 anointed ones will rule with Christ from Heaven, and the rest of the righteous will inherit a paradise Earth. In their view, iirc, the anointed are ordained by God from the start (though I may be wrong on that part). They aren't "creating" more anointed by going door-to-door, they're trying to get more folks to follow righteousness so as to avoid eternal destruction. The anointed will hear and follow the message regardless.