I practice for hours in front of the mirror. I constantly deliver my routine in front of my friends.
When I got into politics, it was a shock. People promise all sorts of things and then never deliver.
There's always a risk when the candidate becomes president: Will he deliver what is expected of him?
If I make a good product and deliver value to users and to the world, the financial gains will come.
There are some things that we value as a public good that the markets can't deliver, like clean air.