Why is aiding developing countries in self interest of the US?

Aiding developing countries aligns with the U.S. self-interest by promoting global stability, which can reduce the likelihood of conflicts that may require American intervention. Economic development in these nations can lead to new markets for American goods and services, fostering trade relationships. Furthermore, supporting health, education, and governance in developing countries can help mitigate issues like migration and terrorism, enhancing national security for the U.S.