Elizabeth Warren’s quote comes to mind: “The first rule of DC is that insiders don’t criticize other insiders.” I suspect the kernel of truth to conspiracy theories is that various private cabals, from fraternities to Skull & Bones to Bilderberg, act as trust and secrecy filters, selecting for those who know where their bread is buttered, and therefore can be trusted by various elites, who have common interests despite being in direct competition for power, influence, and resources (“honor among thieves”). There need not be a singular group of robed masterminds; just the amorally ambitious pursuing their own interests.