If you have to ask that question, you are wasting your bandwidth and my time.
Statistically there is no measurable risk of mid air collision in class G airspace
Bollocks, have you flown to the North and East of Perth when the push is on ?, lots of reasonably fast turboprops and jets in the one piece of airspace.
The new generation ELT's cancel the SAR arguement even if Airservices were monitoring every VFR flight which they don't.
No, it doesn't, many aircraft burn after "landing", therefore ELT does squat, how long did it take to find Steve Fossett ?. 406 ELT are just another layer of protection.
Will help with flow patterns into CTA and help lost travellers.