The financial system is a giant message passing algorithm. It is pretty much just a min-sum algorithm [1] whose sole purpose is to answer the question "what should we do?". Anyone who has played around with these algorithms for solving decoding problems knows that they are fabulously powerful. But these message passing algorithms have two weaknesses: (A) When there is more than one solution (B) When there are small l…
(A) When there is more than one solution
And this is exactly why the concept of a "growing pie" is flawed. Markets generally pool around a single solution versus averaging around multiple and there isn't enough capital (labor or dollars). I think it comes back to power law driving behaviors here and everyone wanting a huge win. So in effect markets look like fixed pies in the short term and the winner is the one that grows the pie.
Trouble with this scheme is, the "pie growth", when it happens, is distributed to a very small group of people who have the ability to make big bets - so it compounds.
In terms of (B) those are basically local maxima tied to (A) so that distribution of growth is chaotic and skewed. So while it might seem like corruption of the network, it actually is a function of the "winner take all" nature of any market in the absence of either consumer/user self regulation or some deus ex machina regulator (government etc...).
Bottom line, it's a problem with how humans act (or fail to act) collectively around information sharing.