An organisation without management basically relies on having people who all act rationally all the time and in the best interest of the company as a whole.
The problem is that not many people like that exist and can be recruited. For a sufficiently small organisation peer pressure and a clear-cut common goal may help smooth over the imperfections of the individuals involved. But once the organisation grows to a certain level, those forces will start losing their effectiveness and you require a substitute to ensure reasonably smooth operations.
I think the key take away is that there is no perfect organisational structure. All you can do is to find a structure that works best for the current situation, but you need to be prepared to make changes if your organisation's current stage of development requires it.
The problem is that not many people like that exist and can be recruited. For a sufficiently small organisation peer pressure and a clear-cut common goal may help smooth over the imperfections of the individuals involved. But once the organisation grows to a certain level, those forces will start losing their effectiveness and you require a substitute to ensure reasonably smooth operations.
I think the key take away is that there is no perfect organisational structure. All you can do is to find a structure that works best for the current situation, but you need to be prepared to make changes if your organisation's current stage of development requires it.