If it just takes a few hundred rich people meeting up a few times a year to manipulate the world economy of billions, that says a lot about the world to begin with.
Most of the cooperation required to manipulate markets and legislation is implicit, incentives-based, requiring little or no recordable coordination.
>If it just takes a few hundred rich people meeting up a few times a year
A few hundred rich people and the world's politicians. Having secret off-the-record meetings, yes.