I think every actions of players in game should have effect in PowerPlay.
For now you can be friendly with everybody.
When you do a mission to assinate someone, it should decrease your reputation for his faction and increase your reputation for factions against them.
Providing weapons to black markets should help minor factions and if you are detected, it should decrease your reputation with main power/faction.
Also it's nice you can be friendly with everybody if you are only doing nice trade or bounty killing, but in many situation your actions should have binary reputation effect : You gain reputation to the main power but loose some to the others. For example assination mission, or killing some wanted people that are in fact just part of minor faction and gave allegiance to a opposite main power.
All your actions should have potentially dangerous effect even though you decided not to play dangerous (PowerPlay).
For now you can be friendly with everybody.
When you do a mission to assinate someone, it should decrease your reputation for his faction and increase your reputation for factions against them.
Providing weapons to black markets should help minor factions and if you are detected, it should decrease your reputation with main power/faction.
Also it's nice you can be friendly with everybody if you are only doing nice trade or bounty killing, but in many situation your actions should have binary reputation effect : You gain reputation to the main power but loose some to the others. For example assination mission, or killing some wanted people that are in fact just part of minor faction and gave allegiance to a opposite main power.
All your actions should have potentially dangerous effect even though you decided not to play dangerous (PowerPlay).