America is by no means obligated to help out the world you know
They have more than enough of their own problems, I think the fact they sent money and other aid is ok.
If you choos eto donate to a charity, why do YOU choose that one out of the thousands that exist ? Likely because you had a relative suffer that illness, or it somehow relates to you. Otherwise, why pick one over the other?
Why should America choose to help out other countries instead of helping themselves first?