Technically, he did in three, he only got a higher place by coming back later on in the game. Besides, Harold is more of a team player, and, as far as we know, he's the only guy in the show to see Heather's (or any one elses) boobs.
i got 3 things to tay about that comment 1. true 2. duncan has actually been a better help to his team: i. tdi: he actually lasted longer than harold in the awakeathon (not to mention he made h-bomb wet himself lol) ii. tdddi: (total drama drama drama drama island) he took on a gator iii. tda: he actually WON the rock and roll challange iiii. tdwt: besides the fact that (the poorly named) team victor just about lost every challenge the participated in duncan got team CIRRRRH into area 51 3. he's just sick for that