[quote=Allen Montgomery]The Invisible Man living in a girls' school and making multiple "immaculate conceptions" was respectful?
Yes. It is.
Adult sexual themes in and of themselves are not disrespectful. If the LOEG books are meant for an older audience, it's a perfectly valid theory of where the character might end up.
If you read the H. G. Wells novel, Griffin becomes a murdering paranoid, hell bent on world domination, through a maniacal "reign of terror." SPOILER... He's hunted, seized, assaulted, and killed by a mob.
If we are to assume he survived somehow, Moore's idea is perfectly valid. Rape is more about power than sex, he's a beaten, recovering wannabe world conquerer, possibly more damaged than before, in a remote, self-contained place, easily managed by him, a murdering paranoid. And any witnesses to anything odd are easily dismissed by the older staff. It fits well enough.