Pilgram,
I am quite sure you know that decisions at an individual level are much easier than at a group, family, country or international’s level. The difficulty and complexity increases exponentially with the directly affected number of people, as many other factors (political, strategic, economical, etc, etc) are at stake.
What I mean by this is, it is so simple for us individual to preach logic on a neutral ground and role, however, I am quite sure that none of us would be able to bring the amount of justice to the world the way we see it necessary!
Those are the reasons why Khadafi is only being chased out now and not before!