IT IS UP TO THEM

Policy decision, business change, campaign promise, crowd-funded idea, whatever - even the best ideas are only as good as your ability to implement. Making the choice or declaring the idea is half the battle, but only winning half the battle is losing. Can you deliver? As Godin would say, can you ship?

And the tricky part to implementation is that it isn't entirely up to you. It's also, to a large degree, up to them - the people your thing affects. Clients, customers, citizens, employees, voters, funders. If they don't get it, don't trust it or don't buy it - as perfect and beautiful and elegant and better as it may be - your thing doesn't matter. You need to help them, but they get to decide. 

More often than not, they will decide not based on what they think about your thing but based on how they feel about you. And that is going to be heavily determined by how you make them feel about themselves. When we talk about "hearts and minds" there's a reason "hearts" comes first.