On turn 112 with 7 cities, I took Equality and went from 52% up to 70%; I'm happy to see it perform.Here's what you get when you rush Equality now. This is in King difficulty, and I'm a little behind in techs having 9 cities. My neighbours, in comparison, have 3, 3 and 2 cities.
Spoiler :
I later annexed a Capital while experiencing some weariness throughout a lengthy war on multiple fronts, and I had to peace out before vassaling due to dropping under 35% for a couple turns. It felt in a good spot in terms of how much war/conquering I was able to get away with as progress.