The difference is that in Athens, a popular assembly ruled, and in ancient Rome, power was concentrated in the hands of the republican senate. Although both there, and there, officials were elected by voting. Also, state issues were resolved. In Rome itself, the republic was abolished during the reign of Octavian Augustus. This happened when he took the imperial throne in 27 BC. It also marked the transformation of Rome into an empire.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.