I think we largely agree -- I do agree that there is something we could call modern evil which comes in a bloodless, soulless, bureaucratic form. I mean that sort of evil never becomes a force in the world that can be effected by, say, a dispel evil spell. Where in DnD if you are selfish enough for long enough the gods will notice your soul will change - you might even wander into the mists of Ravenloft. . .
But yes, you are correct, "evil" is crude form of analysis 95 percent of the time. But I can think of two important exceptions . . .
I'm waiting to hear from others before I try a Dark Urge play - I want to be like BG2 where you felt the urges but resisted them but it should like you cannot stop yourself from killing squirrels and that doesn't sound any fun.