Because conspiracies to be stopped require the sheople to get off their asses, and actually have to do something together which is unpleasant as a group. For that to happen, they have to stop following the status quo and actually have to do something about the injustice. Most would rather leave it up to bureaucrats and the legal system, and hope that over time the system corrects itself, so they themselves do not suffer and do not have to do it tough. It is easier just to believe the government and to let the system sort itself out, instead of being proactive and actually getting to the bottom of the matter.

A conspiracy is a muli-leveled arrangement, where smoke and mirrors are used to get the sheople off the cent via red herrings and scandals. Even if the corruption is stopped for a while, those in power will go right back to their corrupt ways, so instead of trying to weed it out, sheople would rather let things go, and let the political and professional criminals use blackmail and turf wars to bring on the balance. The typical response from a sheople is "you can not do anything about it anyway, so why worry about it". Sheople are prepared to ignore the conspiracy in hope that it goes away; and as long as their life is not directly effected by it well, leave it up to those who's job it is to monitor those types of things.

That is why mankind keeps getting sucked into needless wars for; the corruption just gets deeper and deeper, until a war occurs, and the dumb sheople then march off to war as good little patriot drones defending their way of (head in the sand) life against a enemy they were told to hate, instead of them getting to the bottom of things themselves, and finding out who their real enemies are.