Which alternative does not express the same idea as "Always do right" in the sen...

Questão de Inglês da banca EN aplicada no concurso ESCOLA NAVAL (2011). Confira a resolução completa abaixo:

Which alternative does not express the same idea as "Always do right" in the sentence below?
"Always do right. This will gratify people and astonish the rest" (Mark Twain)