A vote for Dirk is a vote for awesome spying abilities and an arc where he learns about the world by watching how everybody else acts.

EDIT: And now some stunning recommendations for Dirk as First Mate:
[quote=@Banana]
"A vote for dirk is also a vote for MEME MAGIC"
[/quote]
[quote=@ProPro]
"A vote for Dirk is a vote for the president of the Legion of Assclowns."
[/quote]