City-states built up armies/military strength and strong thick walls. Sargon's creation of his empire changed Mesopotomia because it made it all under one ruler. It also make Mesopotomia stronger.
The crook represented kingship (in that it compared the people of Egypt to a flock and their leader a shepherd) and the flail represented the land's fertility, as it is a farming tool.
Yes, because since he enunciated the act he should be proud of the outcome, especially in today's society now