A lot of interesting questions. What I got from studding different religions is that once you get to the enlightenment all material possession, attachments and affairs are not part of your interests. That being said, we can conclude that all current cult leaders, preachers and gurus are not there, probably they are just there for the usual business of power, money and fame.

Today, for truly enlighten person it would be very easy to send message, all you need is Youtube account and a smartphone (adds free). Would people understand message, that is whole another story.