The pyramidal structure of power explains everything, IMHO. Disparate, competing groups can both be controlled from higher up without realizing it. Bitter enemies can be genuine in their contempt and hatred for one another and both be manipulated by the power structure. Only at the top is the full realization attained.
It's what causes the bickering and infighting among truthers…some focus on this group, others on that group. The confusion helps them to discredit "conspiracy theories."