The classic alignment grid consisting of three rows (Good, Neutral, and Evil) and three columns (Lawful, Neutral, and Chaotic) is a contentious topic in TTRPGs. A lot of games (including the Tales of the Valiant RPG) don’t use it, but it endures. Criticisms include that the system is too rigid a
The way I looked at this was that the alignment listed was the common alignment for a monster, but there could and should be exceptions. Even for angels, demons, devils, etc.