The people of Egypt do not have any sense of gratitude to the Americans for the aid we send. They do not request aid, nor is the aid seen as being to their benefit.
Do Americans feel gratitude to the Mexicans and Canadians (let alone the Kuwaitis) for their selling us their oil?
The US, along with others in the UN, helped move hundreds of ancient statues and buildings along the Nile to higher ground when the Aswan Dam was built and would have flooded Luxor and other ancient sites. These attract tourists, and tourists provide jobs for Egyptians. Our aid has kept Egypt stable, and has prevented war with Israel, which Egypt could have won, had they done it before Aswan was built.
Now Egypt cannot depend on a victory, since the entire country could be devastated with one bomb at the dam site.