1) The expansive trait reduces upkeep for the compassion civics to 0. If you don't have that trait, I don't think there's any reason not to adopt Fend for Themselves - in later gamestages the difference to the other civics can be absolutely significant (no upkeep for fend for themselves versus 20+++ for the other civics, and this number increases with number of cities/population size). That's what makes all non-evil compassion civics so weak (although they do have small diplomacy bonuses/maluses). Paying 40+++ gold for what amounts to 2-3 food ressources doesn't seem like a fair trade to me. 2) While commerce gains etc. are now rounded at the .1 level, GPPs are not. That means that until you get at least 20 GPPs (20*1.05=21), you won't get any benefit from it. I haven't played enough adaptive leaders to answer your third point.