Markets are an information technology. A technology is useless if it can't be tweaked. If market technology can't be fully automatic and needs some "buttons", then there's no use in trying to pretend otherwise. You don't stay attached to poorly performing quests for perfection. You fix bugs.

And there are bugs! We just went through taxpayer-funded bailouts of networked finance in much of the world, and no amount of austerity seems enough to fully pay for that. So the technology needs to be tweaked. Wanting to tweak a technology shows a commitment to it, not a rejection of it.

So, let us continue with the project at hand, which is to see if network technology can make capitalism better instead of worse. Please don't pretend there's some "pure" form of capitalism we should be faithful to. There isnt.