If we give with good intention, then we get good Kamma. Our intention is what guides the Kamma. So, if we give mistakenly to someone whom we think will use the money wisely, and then they don't, that doesn't change our Kamma. Our Generosity was still good. We gave with the thought that it would produce a good result. Unfortunately, the person went and did something else.
This is not uncommon with lots of big charity organizations. Every so often, people find out that the money isn't always going to the people that they say they're going to go and help. Instead, the director, the assistant director and the boards all have their Mercedes, and whatever else, from the money that's been donated. It happens, from time to time, but if we're giving thinking we're going to help a certain charity, and that's our wish, that's our intention, then that will always produce beneficial results for us.
Whether it actually does produce a beneficial result down the line that immediately changes with the next person that has the opportunity to touch what gift we gave.
Sometimes the gifts can multiply. The first time we came back from Australia, to Wat Kow Tahm, we brought the nuns some really nice candies, something they couldn't buy here. We gave it to them before breakfast. Oh, they were very happy, they thanked us very much, and they immediately started taking them out of the box and putting them out for the monks. We said, "Wait a minute, wait a minute, we bought them for you! You've been cooking for us, you've been doing so much. The monks don't do much, you've done so much".
One of them replied, "Yes. You just gave them to us. Thank you! Now we can do what we want with them, and we want to give them to the monks". So they gave them to the monks, but the monks only ate half, and gave the other half back to the nuns! We gave. The nuns then gave. Had we not given, they would not have had the chance to give. Because they gave so much to the monks, the monks knew "We'll give some back again, they're ours now". The minute they're on the monks' plates, that's for the monks. They can eat them all up if they want to - No! Give some back to the nuns, share with the nuns, these special candies, that came from somewhere.
So we gave. We made good Kamma. We got some good results somewhere. Then the nuns had a chance to give, which they didn't have five minutes before that. They gave, made good Kamma. Then the monks, with so many candies, had a chance to give also, and they made good Kamma. Neat, eh? So, generosity sometimes can multiply, and we get the benefits of that, too. But, as the question goes, if we mistakenly give it and the next person misuses it then that's their Kamma. But our Kamma, our intention, is still the same.