Behavioural Change - Effective Game?

I found this and was interested on any community members view on this as a tool for behavioural change.

http://www.gametrekking.com/the-games/cambodia/the-killer/play-now

I'm curious on the choice that others make if they play it.

(Some may not be comfortable playing this so please be aware that the ending is emotionally provoking)

Nicholas