If and only if you are a conquering murderer with a ridiculously large empire.
we've got a pacifist eh?
I try to NEVER EVER delete a civ by conquering all of it. I simply leave it with its one city, surround it with mine and CAPITULATE AWAY.
This can be VERY VERY expensive without STATE PROPERTY. Technically, I'm using to avoid total civ obliteration, therefore its good.
Besides, all me buddies I usually end up with in civ (aka Alexander, Mao, Catherine or Stalin) all likes the State Property. If you don't, thats great, but come ON its a game. Where not conquering murderers, were just players doing something we could never do outside of civ.
I always end up with my civics like this:
-Hereditary Rule (Hell YEAH!)
-Nationhood (free AND happiness? ALRIGHT)
-Emmancipation (HA! losers who dont have it SUFFER!)
-State Property (Finally, I can stop bankrupting with me LARGE EMPIRE)
-Free Religion (Uhh... how I hate religious turmoil and wars. "Adopt my religion!" NO, YOU ADOPT MY RELIGION MORON!!)
...besides, who doesnt like the ocational civ bowing down and kissing ones feet?