Nitty-Gritty said: The facts are that child molesters will never be able to serve in any capacity ever.
This is of interest to me. Do you have a source for this remark? Is it in Watchtower publications? Any references would be appreciated.
The information I have seen til now suggests the opposite is true, that child molesters can become servants or elders later on.
I. The current Elder's Manual, if I'm reading it correctly, says it's possible for a known child molester to become an elder. Notice the last sentence of par 20 below.

"For example, the sin may involve past child abuse, and this would likely disqualify him for many years."
So a known child molester could be disqualified from being an elder for "many years," but not permanently, and only "likely" so at that, not definitely so.
II. This is what happened in the recent legal case of victim Jose Lopez, handled by Irwin Zalkin, who was molested by Gonzalo Campos.
The information below is according to the U-T San Diego online newspaper. Complete article is here,
http://www.utsandiego.com/news/2014/oct/31/jehovahs-witness-sex-abuse-judgment-lopez/
After Lopez reported the molestation to his mother she approached the elders. Then the article says,
"According to trial evidence, the church judicial committee looked into the allegations and found that Campos was repentant. It monitored his behavior for a period of nine months but did not expel him from the church.
"In fact, Campos went on to rise through the ranks of the church, continuing to teach Bible studies to young children and ultimately becoming an elder in 1993. At one point he left the Linda Vista congregation and moved to one in La Jolla. He was ultimately kicked out of the church in 1995, after another victim surfaced, but was reinstated in 2000, court records show." (By Christina Davis, Oct 31, 2014) Highlighting added.
Granted, news papers can get facts wrong, but if this is accurate it illustrates what the Elder's Manual says, and Campos became an elder after being a known molester.
Again, any references to support your remark that this can't happen would be appreciated.