Power to the People
Having no middle men is gold since those normally keep a nice share.
I also think it will help with wealth redistribution, which is something we desperately need... it is ridiculous the way the system is set up now, having a few heads controlling the world economy.
When you give power to the people, you support the real world, the working class, which has never been done. Thats why the blockchain is so revolutionary, it gives us mortals the hope for a better and fairer world.
Theres no need to keep supporting this shitty actual system where only a few get richer and richer every day, while in the poor countries people starve to death.
I hope it will achieve something that at the moment seems impossible: Stopping hunger. How? Like you said... with responsible and fair charity organizations that wont keep half of the cake for themselves.
Another key point is transparency, when your model is transparent as the blockchain is, there is little to no room for corruption and scams.
So to sum up... I think decentralization will make the world a much fairer place.