I think we are also going to discover they were infiltrated early on by all forms of evil people.  Socialism, communism, demonism, - pick an ism.  They all had the goal of power & control, as you point out, but also the goal of dismantling the Constitution to push us into the NWO, as GHW Bush liked to say.  It just took a while before enough of them were in place and could start playing their cards.