I mean, it is technically the Arab Republic of Egypt.
And they are part of the Arab League.
Saudi Arabia has more land mass, maybe, I think, but Egypt has the largest Arab population.
Also I would agree they are way more culturally significant than Saudi Arabia, because the Saudis are just sort of stuck, whereas Egypt has been unstuck. And really, in perspective, Egypt is changing all the time, cause 30 years is just a drop in history, and Egypts had all sort of governments and occupations and stuff like that. Change of any sort, whether good or bad, leads to cultural significance. Egypt still has the active muscle to go places, whereas the Saudis are all sorts of wasting away in their cage.