You have a peculiar notion of "broken".
When you say "broken" are you trying to say "not how I think it should work"? Because I believe sarongs are definitely functioning as intended.
If you want a gameplay justification, consider that str and dex both allow you to wear better armor than int. Additionally, str increases carry capacity and dex increases defense rating. They also give access to the best weapons in the game.
Int gets sarongs.
