Answer:
Well, we cannot say that they were similar at all, because of the simple reason that in the 5th Century BC plebeians gained political rights, while slaves were not able to gain any.
Step-by-step explanation:
Basically, in Roman society there were three different social classes. Those were patricians, plebeians and slaves. Through time patricians and plebeians were closed, because series of laws for introduced because plebeians searched for more rights. That was not the case with the slaves.