Another thing the US does, is that it loans Ukraine money, on the condition that Ukraine spend that money buying American arms. (EU does the same thing.) So, it's a defense industry stimulus package. That's why these "presents to Ukraine" often get approved by people who don't like Ukraine: the money actually goes to Americans, not Ukrainians.
Discussion
The USA has probably made money off of "helping Ukraine", in fact, as everyone can see that the US-made stuff is vastly superior to the Russian-made stuff, and now they're completely swamped with weapons orders for high-grade stuff that goes for like $80 million a pop.