They generally did not give the opportunity to play the evil hero, they need a special evil writer if Larian has any problems in order to realize this to its full potential.
What are the shades of evil? Kagha and Shadow Druids? Dead end, they attack even if we helped them. Minthara? She is beautiful, but she did not even go with us to the party as a companion and she is a puppet of the Absolute and does not act of her own free will. Helping her as a "leap of faith" in the first playthrough, there was no hint of a sequel. If my intuition had been less strong, perhaps I would not have helped her because it was not very obvious that this could be done at all.
In addition, at the end it is again not clear what will happen next, when we see her and get into the party with the continuation of the romance. If this does not happen, then it will greatly disappoint me.
Goblins? They are stupid, and helping them looks like the most illogical action, no answers or hints that it might make sense. Helping the fake Paladins of Tyr? Idiocy, you can't tell them that we know their secret and want to enlist in the service of the demons. Show us at least one normal evil variation in EA that would seduce us, motivate us, and look like an interesting solution.