They justify villainy in the name of high ideals.

他们打着实现远大理想的幌子为他们的恶行开脱。

《柯林斯英汉双解大词典》

Her decision to publish the controversial Pentagon Papers in 1971 ensured that her name would always be linked to the ideals of press freedom.

1971年，她决定出版备受争议的《五角大楼文件》。这就确定了她的名字会永远与出版自由的理想联系在一起。

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At the opposite end of the country, along Iran's border with Afghanistan and Pakistan, the security forces are also being stretched by dozens of bandit groups and particularly by the savagery of Abdolmalek Rigi, a young Baluch who kills in cold blood in the name of his vaunted ideals, Sunni Islam and Baluchi nationalism.

ECONOMIST: Iran (2)

In the images from Abu Ghraib and the brutal interrogation techniques made public long before I was President, the American people learned of actions taken in their name that bear no resemblance to the ideals that generations of Americans have fought for.

WHITEHOUSE: President Obama: Our Security, Our Values