Oh, the irony, money helps make a person better for once. Seriously though, inner symbolism aside, the fact that it's money is a bit weird. He could've given AJ his crutches. They would've served the same purpose in the long run. But really? What's wrong with money when it's given in the same situation as this? It's not like she's going to spend it on farm tools in 3 seconds, she's just keeping it to herself as a reminder of the value of honesty. And that, in itself, is a really big thing to do.