I would say USAID (United States Agency for International Development) has done good work overseas:

https://en.wikipedia.org/wiki/United_States_Agency_for_Inter...

Like all large organizations and projects they are not absolutely perfect or ethical, as you can see in the Concerns and criticism section towards the bottom of the Wikipedia page. Still, I think they made some contribution to humanity. I have seen articles saying the withdrawal of funding has definitely hurt communities USAID had been helping.

I know the CDC (Centers for Disease Control) do (or did) disease prevention work outside the US. There are other examples like these. I don’t know if the government did more good than bad, but they certainly have done some good that is not just designed to benefit American big capitalists.