@Tuoni That's not what I meant.
If you're selling a "Demon resource" from Tartaros, you don't have to worry that an Arboreus player is able to safely gather "Demon resource" on Arboreus as well because that resource is unique to Tartaros. With each planet having their own unique resources, nobody has to worry about everyone going to Arboreus to farm resources there because it's the safest planet. If someone wants Tartaros resources, they will have no choice but to go to Tartaros to gather it, or alternatively buy it from someone who did. No resource will be strictly better or worse though, just different. With that said, I do expect resources from dangerous areas to be more valuable than from safe areas.
@Farlander You won't be able to explore all of Arboreus as an evil player, but I believe it will now be possible to unlock that knowledge elsewhere. I shall ask Prometheus what the current plan is for those unlocks.