How high a percentage of Christians devote themselves to preaching/evangelizing instead of trying to become rich? The reality is that the vast majority of Christians put virtually no effort in spreading Christianity, and instead try to increase their personal wealth and to enjoy their life on Earth.I know because I work with Christians and am surrounded by Christians in my country. A small percentage of Christians, succeed in amassing massive wealth.
The message of the biblical Christ about pursuing kingdom interests first is in the context of a message of an imminent apocalypse and is suitable for such an apocalyptic message, but it has proven futile for people to be in anxious expectation of the return of a Christ who supposedly first came in the first century CE/AD.The largest churches/denominations of Christianity (such as the Roman Catholic and the bulk of the Presbyterian and Methodist churches [other than perhaps the most theological conservative churches], as well as the Anglican church, the Episcopalian church, and the Unitarian church) long ago gave up in preaching the apocalypse from their pulpits, and they don't go door to door to preach.
There is no kingdom of Christ (and no supernatural Christ) and there never will be. The Bible is wrong in its teachings of a kingdom of God by Christ. It is better to focus on being happy in one's life on Earth for there is no afterlife. Rutherford, an admitted former atheist for a period of time before learning the message of the Watchtower, acted rationally (even if immorally in certain ways) in trying to get the most enjoyment of his human life on Earth instead of pursuing in a fully biblical NT way a future life in heaven, since there is no personal god (and thus no Jehovah). Perhaps he was a 'closet atheist' while President of the Watch Tower.