Nude Bard/Sublime Chord/Heartwarder/Vow of Poverty Build

[Poppatomus]

The only way this functions as a BBEG, is to make it a BBGG (oxymoron?) in an evil campaign.

I don't know. I would wager there's a way to get to a similar spot with the book of Vile Darkness.

and it's not as though good has a monopoly on nudity.

just switch it around so that your allies only gain a +2 on things you explicitly command them to do, and have the effect on those around you be jealousy rather than fascination.