How about increasing the values that pertain to empire reputation? IIRC these values were not quite working as intended anyway, but it could be a blessing in disguise.
Allow me to explain:
I played a game some time ago with Haree's Banoserit race. An interesting thing about that race is that it was designed around a government type that had very high values in the two fields that determine how much your empire cares about your own reputation, and that of other empires. What I noticed was that my own population happiness was barely affected by my reputation. Poor reputation resulting in only -1 happiness, which is definitely not what was intended. On the flip side, one or two independent takeovers gave me a very large malus with every other race I'd met so far. Suddenly empires were cancelling free trade agreements, going from +20 to ~-20, etc.
The way I understand those two fields, they should not have an impact on how other empires view you (their opinion should be derived from that section in their own government file). But, it seems they do. If these values were increased for certain races we may see a greatly increased chance of war, without forcing players to have a slew of -60 diplomatic relationships purely due to race. Similarly, this could make pre-established agreements more tenous, leading to unpredictability.
As a side note, I think that the reason my own colonies were not experiencing a poor reputation hit was because the Banoserit government type 'Authoritarian Eugenics' has an exceptionally high stability rating. That value is only meant to affect espionage incited coups, but it's the only reason I can think of.
< Message edited by Tcby -- 7/25/2014 12:46:41 PM >