Answer:
Roman virtues were warrior virtues that were appropriate to farmers and warriors. In order to acquire those virtues, men needed to fight wars. Thus, one major benefit of expansion was glory! ... Even common soldiers earned great prestige when they had fought in an important Roman victory.
Not entirely sure what you mean by this unless you mean specific interpretations of the constitution, which is considered judicial review which was established in Marbury v Madison, also known as an informal amendment.
