The global education market is worth much more though.. I've seen one estimate of $7 trillion.

This is because they are paid to keep average average and consuming :)

Then again it might reduce it by a trillion times if the citizens of the world realise the use value (rather than the exchange value) of derivatives.

What is funny is that crypto and blockchains might not be worth very much but, if they do their job, the fiat worlds will be worth a hell of a lot less :D