I've read Chomsky through and through.
And megacorps are dinosaurs because technology is making the contest between David and Goliath a much more evenly matched one. The biggest online companies today (Google, Yahoo, Alibaba), which are themselves among the biggest companies in the world, didn't even exist ten years ago. And in another ten years they will be replaced by others, and they by others. Small businesses will be able to take on medium ones and medium businesses will be able to take on large ones - on and on into perpetuity. Radical decentralization of political, economic and cultural power is the future; although whether this is a blessing or a curse depends on what your outlook is.