It could be your choice of words and examples that cause confussion.
Might does not make right, might makes those in power in control and being in control does not make their actions right. They can write laws, but since those laws can be modified or repealed then what you have is an opinion that is enforced at that time, which does not make their opinion right.
The U.S. Constitution does not include a right to privacy. This concept was made a "right" because the Supreme Court said all American's have this right and therefore abortion on demand is now legal. If you read the U.S. Constitution the Supreme Court's authority is limited to enforcing, not interpreting laws passed by the Legislative Branch, which has control over the Supreme Court. Since our legislators do not have the guts to stand for what is right they allowed the Court to write a new law.
A state can have a death sentence in their laws, but the governor in some states has the right to commute the sentence, even pardon the prisoner, so the law is not always the final word and therefore the law is right only when enforced by those in control. When you break a speed limit, run a stop sign, or violate any "minor" law then at that point in time you have the power (might) to decide what is right - for you, but not for society as a whole, unless you have the military or political clout to write laws that can be annuled by some other persons choice. Go back to Hitler, he had the power to execute people but he did not have the power to force all his subjects to enforce his ultimate solution, which is why many people in countries he controlled with his military hid Jews and helped them cross borders into neutral countries. So Hitler was not right, he simply had power that was terminated with a war.