Sure, but something can be "compelling" for any number of reasons and truth or accuracy don't need to factor in. People like to hear what makes them feel good or confirms their existing beliefs.

No one lives in isolation. Even if you don't see the value in humanitarian efforts and even if in your selfishness you don't have the selfish wisdom to support US soft power projection, you should be smart enough to realize that the US does not exist in an impermeable bubble. Global health improves health at home.