I think Byteball is a very innovative cryptocurrency, and quite underpriced for the level of development the currency has right now.
For you who looks for a project with social benefits, it brings conditional smart-payments, which opens up a range of possibilities in the insurance sector.
It uses a new consensus mechanism (DAG) to allow the best possible level of scalability. It has already a very user-friendly wallet, and development happens continuously. so keep an eye on it.
That's a really interesting take on Byteball, of which I'm quite proud to have been an early adopter (just too bad I had hardly any bitcoin when the early rounds were first distributed). Yes, it's underpriced, yes, it's undergoing a period of transition now and yes, it has some amazing technology that I've managed to use myself with success (first time I ever tried conditional smart payments on any crypto ever).
I never realised it would have social benefits though... and I'm not sure it can argue to have that side to it. Yes, it's good for the community, they had a great spirit of adoption and the devs keep thinking of useful ways to get even more users on board. But social change?