How would you measure the achievements of the populist movement?

Other Populist-endorsed measures included bimetallism, a graduated income tax, direct election of Senators, a shorter workweek, and the establishment of a postal savings system. These measures were collectively designed to curb the influence of corporate and financial interests and empower small farmers and laborers.

because other regions has other things that egypt doesnt have.

nothing certain is known about what happened, but it seems that the country declined gradually, perhaps due to bad government, or, more likely, due to a series of bad harvests, which resulted in widespread and recurrent famine.