I have also seen just as many non-Jewish people who are in positions of power in large corporations too, given how competition-based this world is, it is unlikely that some group in every corporation could just ignore the interests of their corporation to collaborate with some kind of world conspiracy, when powerful people cooperate, they seem to do it so everyone in the group profits.
And there is of course the world market, powerful countries where there aren't many jews at all and they have effectively the same societal organization, there are reasons jewish people have historically been involved in certain industries, but they do not "control the world" as some people think.
This applies to anonymous boards and forums too, I'm not speaking of this in the "social media bad" sense.