Why was the power to veto laws signifacant?
It is but one significant step in the process of protecting the rights of the people. In their zeal Congress has and will continue to invent laws that speak to popular concerns. If these laws abrogate or derogate the rights of the individual, then the President has no other authority but to veto. If the legislative body is able to pass the legislation after this, it is then up to the courts to protect the rights of the people. But at all times, it is up the individual to assert their rights when being encroached upon.