Type the Dark Lords of the sith

[Murrdogg]

[youtube=_AkBC6wX-bw]List of all Dark Lords of the sith[/youtube]

Ajunta Pall: ISTJ
Marka Ragnos: ESTJ
Naga Sadow: ENTP
Ludo Kressh: ISFJ
Freedon Nadd: ISTJ
Exar Kun: ESTJ
Ulic Qel-Droma: ESTP
Darth Revan: INTP
Darth Malak: ENTJ
Darth Traya: ISTJ
Darth Sion: ISTJ
Darth Nihilus: INTP
Darth Desolous: INTJ
Darth Ruin: ESFJ
The Dark Underlord: INTJ
Darth Rivan: INFJ
Belia Darzu: ISTP
Lord Kaan: ESTJ
Lord Kopecz: ISTJ
Lord Githany: ESTP
Darth Bane: ISTP
Darth Zannah: ENFJ
Darth Cognus: INFJ
Darth Millenial: INFJ
Darth Vectivus: INFJ
Darth Plagueis: INTJ
Darth Sidious: INTJ
Darth Maul: ISTP
Darth Tyranus: INFJ
Darth Vader: ISTJ
Darth Caedus: ISTJ
Darth Krayt: ENTJ

Why ISTP for Darth Bane? I never read the book, so I ask. Anyone can answer me.