It depends on the interpretation, which differs from setting to setting (and from GM to GM, of course). In some of settings, the Law/Chaos axis determines your behavior as much, if not more, as the Good/Evil axis does. A Chaotic character is practically compelled to perform Good/Evil acts; a Lawful character, on the other hand, will follow the Law as much as he’s able, even when doing so would prevent him from achieving his short-term Good/Evil goals.
Furthermore, “Evil” is sometimes defined as something closer to “selfish”, whereas “Good” is something closer to “altruistic”. Under this model, an Evil character would seek to increase his own wealth and power, or possibly just sit in the tavern all day getting drunk and playing tricks on the other patrons—depending on what he’s into. A Good character, on the other hand, will seek to help the villagers to live better lives, according to his definition of “better”.
This makes “Chaotic Good” a truly terrifying combination (f.ex. see Planescape Torment), because a Chaotic Good character will seek to reshape the world in his own image regardless of whether anyone asked him to do it or not. If a few villages (or towns, or nations) need to be burned to the ground for the Greater Good, then so be it.
It depends on the interpretation, which differs from setting to setting (and from GM to GM, of course). In some of settings, the Law/Chaos axis determines your behavior as much, if not more, as the Good/Evil axis does. A Chaotic character is practically compelled to perform Good/Evil acts; a Lawful character, on the other hand, will follow the Law as much as he’s able, even when doing so would prevent him from achieving his short-term Good/Evil goals.
Furthermore, “Evil” is sometimes defined as something closer to “selfish”, whereas “Good” is something closer to “altruistic”. Under this model, an Evil character would seek to increase his own wealth and power, or possibly just sit in the tavern all day getting drunk and playing tricks on the other patrons—depending on what he’s into. A Good character, on the other hand, will seek to help the villagers to live better lives, according to his definition of “better”.
This makes “Chaotic Good” a truly terrifying combination (f.ex. see Planescape Torment), because a Chaotic Good character will seek to reshape the world in his own image regardless of whether anyone asked him to do it or not. If a few villages (or towns, or nations) need to be burned to the ground for the Greater Good, then so be it.