About the question “If the United Nations was fully funded why would we need the Arc or social enterprises”, I agree with this statement that we should first identify the definition of responsibilities they take separately before we discuss whether we still need social enterprises given that we already have United Nations funded.
As an intergovernmental organization, United Nations aim to promote international co-operation, which is of a large scale. While social enterprises aim to apply commercial strategies to maximize social utilities,earning profits for society development instead of for certain individual shareholders.
However, in case of how to manage social resources to maximize development or benefits for society, I think it is better off when they work with each other.
Take UNDP(United Nations Development Programme) as an example, it generate large international purchasers, local producers and others to strengthen each commodity’s value chain. Additionally, it hosts the secretariat of the Business Call to Action (BCtA), in which way to encourage more social enterprises to develop innovative business models therefore combine profitability with development impact.
So in my point of view, it has another reason other than the difference of scale in charge of United Nations and social enterprises. It is noticeable the role that United nations is playing is a manager or coordinator for those social enterprises to operate more efficiently, and it also provide international platform for social enterprises. They are actually working mutually with motivation effect.