It means that even it everyone is doing something wrong, it is not right. It is referring to peer pressure, don't do something just because everyone else it doing it.
While correct, this is not a question.
The beginning starts off with "has taught" indicating a foreword. The passage also talks about past achievements and accomplishments.
The sentence includes two words with virtually identical meanings: duplicity and dishonesty. Therefore, the context clue that's found in the sentence is synonym, as the two are synonymous.
Answer:
Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It comprises the westernmost part of Eurasia and is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and Asia to the east. Europe is a place ruled by Kings and Queens, while in America we have government. Europe is much "fancier" than America.
