Welcome to the forum, Oracle, and I'm looking forward to seeing your posts in the future.
Today, those being considered for appointment as elders must have proved their faith and devotion over time. Others in the congregation thus have reason to put trust in the direction and leadership provided through this arrangement.
When I was still attending meetings, I took a look at some of the elders in my hall--and didn't see any of them, maybe with the exception of one, who I could ever trust for leadership when and if persecution ever came. I just wouldn't trust their judgement.
While it is true that each Christian should have a personal relationship with God, we cannot deny that he is using a worldwide congregation, as he did in the apostles' day.
Each Christian? Does that mean non-anointed JWs? Do they really expect the R&F to have a personal relationship with God when they say only the spirit-begotten "Christian" has special relationship. It took me a few years to see thru this one.