[occamrazor]

There are two problems with this course of action:

1. Companies depend completely on an efficient credit infrastructure. They buy on credit even more than consumers. Shutting off the financial system, even for a short time, effectively means shutting off production.

2. To rebuild the financial system one needs domain expertise. The people with the expertise are those who work in financial institutions. Purging the elites has never worked (E.g. Mao and the Cultural Revolution, the US in Iraq, Mugabe, ...)

[api]

#2 is a very important principle that spreads across all kinds of areas and domains. The top of the pyramid almost by definition tends to monopolize domain-specific talent, therefore the only revolutions that ever work are those that convince the elite rather than those that purge them.

Luckily elites are just human beings, not shape-shifting reptiles from space, and can be convinced with rational arguments and/or human empathy in the same way and to the same extent anyone else can.

[Terr_]

Who said the experts would be literally murdered?

The expertise would still be around, and companies -- possibly new ones -- could still hire them for any positive contributions they believe could still occur. They'd just have lost (arguably with great karmic and ethical justification) a portion of their fortune and power.