thanks @stwbll and @deanliu, great question, I agree it is not obvious what Aragon can be used for at this point in time. I'd say generally as a governance mechanism for open source projects... or futuristic nation states. Someone on Reddit proposed this interesting use case:

"What about the potential for the network to be used as a serious investment vehicle?
Currently the venture capital industry is in dire need of being able to understand their firms stake in startups and what sort of value they can expect from seed funding. With so many different VC's getting involved through multiple seed rounds, the process becomes convoluted and hard to distinguish who has true voting power and authority."

At this point I think the best thing to do is to go try the app for yourself and tinker with its functions. I did it myself and that's how I came up with the idea for transparent masternode investing.

Hope that helps :)