Again, the theory holds that Evil has the greater range and flexibility.
Not exactly. The Unfettered types have more flexibility and can do evil as well as good, but being Unfettered does not equal evil.
Which brings home the point that as a rule, people are not good or evil, only their actions are. If your disposition were actually towards evil as others' disposition is towards good, you'd be as constrained as them, but that's very rarely the case.
That is relevant for the games btw. I like to experiment with different ways of being Unfettered, but the games rarely give me a reasonable motivation to do the more evil things. For instance, I have a character planned who feels unconstrained about using illithid powers from a viewpoint of morality, but she cares very much about not losing control of herself, and not becoming a mental slave to the Absolute, whoever that is. So that plan for a character who does evil stuff for illithid powers is out of the window. It's like that in most games. Most storylines impose additional costs for doing the evil things, rather than letting the players reap the reward of an evil action with no downside except running afoul of local law enforcement (which wouldn't even apply in this case).
