The systems come about and develop by many methods, such as the physical forces in the case of atoms or biological evolution in the case of animals. But in every case they succeed at being better generators of entropy.
If we want to make society work for us then we have to understand how society can generate more entropy - and at the same time create roles for us (its component parts) that we want to live. Free market democracy has succeeded precisely because it does this exceptionally well. It creates a framework in which innovation is embraced and people are encouraged to work and consume (creating a very efficient dynamic for entropy production - literally turning resources into shit.)
If you want a socio-economic system that is less corrupt then you have to work out how to create one that has the benefits of the free market, but without the downsides. That is a hard problem to solve. But I think it is solvable, and so I have spent the last few years working on a new economic platform called Babbling Brook. http://babblingbrook.net
It is not a new economic system in itself. It is a protocol for social networking activity, that is based on an understanding of emergently complex non equilibrium thermodynamics. Which is essentially means it is an open ended platform with built in feedback loops that allow for increasingly complex systems of exchange to emerge.