Edit: Whoa you guys, chill. The OP didn't attack any of you, just questioned the Pokemon universe. No need to jump down his throat. Any continuing with this and people will be warned/infracted.
I am not attacking him... I am just pointing out facts (I did so in my last post).
However since you warned me I'll stop :3
Pokemon in the video game do not try to escape (maybe they do in the anime) but not in the main series game.
EDIT: you may want to read this before continuing our conversation.