I think it's extremely helpful if a project is able to improve people's lives, and I think the difficulty is how you value that in sort of monetary terms so you can show that you've reduced certain things.
The other measures are more difficult to weight and to evaluate. I think you can certainly look at some of the things I've talked about before as to whether people are working, whether they have better health, whether they feel better in themselves. These are all important measures of improvement.