Toward the End of Her Essay, Nicole Hassoun Writes

Toward the end of her essay, Nicole Hassoun writes:
Billions lack access to clean water in their homes and access to essential health services. Millions lack access to adequate sanitation, food, and shelter. Foreign aid alone will not completely solve these problems, but it can help many people live minimally good lives. We should not neglect the water for the sea. Saving even one life is a good thing. A great thing.
In your essay, develop a possible challenge to what Hassoun says. Why might someone doubt that arguments like this-that focus on the goodness of saving "even one life"-should guide countries' aid giving activity abroad?