Garyee Yue's translation is good but there are two tricky mistakes. 1. I can't tell without more context, but I think "men" in this sentence probably means "people" not just males. It should be 人 not 男人。 Its a sexist convention that hasn't been used much since women's movement. 2. I don't think "不再“ is correct because that means "no longer". If the sentence was "wicked no more" then this is correct but it says "nor more wicked than" which means "just as wicked as". “现在的人是跟以前的人一样邪恶” or maybe "现在人的邪恶跟以前人的邪恶没区别“

This means any one person commits the same number of evil actions on average as a person from any period in history. However, that person today does not feel bad about that action as often as a person from the past would. So I, living today, would be just as likely to sin as someone from ancient Greece, but less likely to feel bad about the sin after I had done it. Hope that helps

Man and men are sometimes used to refer to all human beings, including both males and females. -- From Collins COBULD Disctionay

我来试下翻译：我坚信，虽然现在的男人不再像从前一样邪恶/缺德（lol），但是他们似乎越来越不知羞耻了。(a haha, nice one!)