BEcause they're easy. Comic book movies don't generally make for complex alignment interactions.
Sandman is Neutral with evil tendencies.
BUtler is Lawful Neutral.
Octavius is neutral good, except when he lets the arms in his head they're chaotic evil.
Eddie is a low tier NPC and should thus be thankful he has a name, expecting actual stats is a delusion of grandeur on his part.
Dark Pete was chaotic evil.
Jameson is True neutral.
Sandman is Neutral with evil tendencies.
BUtler is Lawful Neutral.
Octavius is neutral good, except when he lets the arms in his head they're chaotic evil.
Eddie is a low tier NPC and should thus be thankful he has a name, expecting actual stats is a delusion of grandeur on his part.
Dark Pete was chaotic evil.
Jameson is True neutral.