Bee-Dubya-ell, there is one problem that would have to be addressed if you used the 'selective' system as you say in A few "candidates" are selected at random. They complete a form very similar to a job application which details their qualifications and their opinions on a few important issues. That is those people who genuinely do NOT want any part of it.

I have some experience with that: Among the Amish, they draw 'by lot' their candidates for pastorship. The name of every male member(HA!) in good standing in the church goes into a literal hat from which x number of names are drawn to be considered. I believe they then draw a second time from the smaller pool the name of the man who has been selected. That man is accepted as being chosen by God.

The story goes that one relative of mine was selected that way; he was totally unsuited for the position and they say he wept before and after each sermon he had to give.

Of course, I do realize this is not what you were proposing.