清廉潔白できこえた彼が、汚職なんかに手を染めるわけない。

He has a reputation as being straight as an arrow. He'd never get involved in corruption.

破廉恥な人間は自分の母さえも裏切るだろう。

An unscrupulous person would sell even his own mother down the river.

もっと安い廉価版はないのですか。

Haven't you got a cheaper edition?