The top Three persons are indeed board members of the Aurarad Foundation, but they are also developers. A big misunderstanding I have seen in Crypto communities over the last couple of years is that people tend to think developers are the same as coders. The development of auroracoin consists of more than just typing code and compiling awesome wallets. That's a serious, yet miner part of the real development.
The true developers are the ones that develop the coin as a whole, including creating awareness, educating people and developing a solid user base and attracting merchants. Even what I'm doing right now, explaining this, is part of the development of Auroracoin.
In more detail, Pétur is doing a great job in setting up the foundation and creating the OSX and IOS wallets. Hermann is working hard and close with Yan to promote Auroracoin on all possible media and is responsible for the new exchange that is about to be launched. Hlynur has proven to be priceless by engaging in meetings with Government and Tax departments and giving lectures and presentations on Auroracoin all over Iceland.
I would say these guys do amazing development for Auroracoin!
Why not have adamastor be a developer in South Africa for AUR. The more development we have the better.