How was Julius Caesar important even after his murder?

It is the idea of Caesar that remains important after his death. Caesar's identity still resonates with the plebeians. Antony takes full advantage of his speech and informs the crowd that Caesar was a selfless man who cared for Rome above everything. The highlight of his speech is when he pulls out Caesar's will and reads from it, telling the citizens that Caesar has given every Roman a part of his inheritance, in both land and dachmas. The plebeians now believe Caesar to have been great and good, seize his body and vow revenge upon Brutus and the rest of the conspirators. Their rioting develops into pure anarchy. Antony comments that he has done his part in creating social upheaval, and now must wait to see what happens. Brutus and Cassius are forced to flee the city,