Look 20 deaths is completely unreasonable, for these reasons:
**1.) People who are fighting against massive odds (eg: reviving a cabal from the dead against mutiple foes) will no longer exist. **
Why train for the 30 hours it takes to condeath within a month?
2.) As far as the reward system goes in respect to tattoo's, induction to cabals, cabal promotions, any sort of reasonable character logevity...
All of this will need to change. Average character life is somewhere between 300-500 hours, with a few of the older players ussually hitting 600+ if they only play one main and stick with it 
If the number of lives was reduced we would NEVER see a newer player reach any sort of cabal rank if they were not greatly fast tracked.
3.) Ranking time and living at 50 time.
A normal player will take about 100-150 hours (in these pbase conditions) to rank from rank 1 to rank 50 and be fully trained (excluding blam's and monks). If you are a newer player thats even longer.
Then you only have about another 60 hours or less to learn how to play the character before you condeath?! I mean thats averaging 1 death to every 3 hours, I'm pretty sure there are newer players out there who have a MUCH worse average in the first 20 or so of there deaths, before they get the hang of things.
4.) The purge system:
As of yet the purge system seems to be working alright. Those people maintaining there equipment are taking the correct steps in doing so, IE: sticking in the playing time.
Save for a few pieces of equipment (vorpal and solar mace) the equipment seems to be pretty available. I know because I'm forever doing gear runs for peope so there is alot of stuff around ALL the time. (I have a boring play time usually.)
Secondly - things are supposed to be rare? Not many around? Isnt that the point of it?
(ALTHOUGH I WILL ADMIT THERE IS SOME PROBLEM ATM WITH EQ DISRUPTING THE BALANCE OF PLAY.. [DISCLAIMER
])
Also as far as cabal's are concerned, You have a limit as to how long you can be away without written notice, and even then - I mean with Watchers we are at WAR. If I gather enough info about you not turning up I will warn you and then expel you. As will many other cabal elders/leaders/immortals. You are there to fight and to support the cabal. See that thats what you commit to doing 
Conclusion:
As to respect of 20 lives per character? Impossible. I think that 60 is a good balance. Especially since ressurection has been changed from restoring that life. I can remember back in the day when evils lived half as long as the goods because they kept getting resurrected and the evils just got owned.
Its also impracticle for newer players and the reward system atm.
As for purging eq? Well its supposed to be rare anyway. And REALLY there are MANY substitutes out there that are NOT bad in any way. Sure they may not be shrouds of undead, cloaks of righteousness or the likes of that - but an eel cloak isnt a bad place to start 
my 2c
<3 A