Define liberty and justice. You will find these terms are fluid and mean different things to different peoples and different cultures. Very few individuals, groups, governments, etc... outrightly claim, feel or believe they are EVIL. Most times you will find from the past, as well as the present, that liberties restricted are done so in the guise of being "in your best interest." What one person considers justice is perceived as tyranny and oppression by others.liberty and justice every chance you get.
Liberty is the freedom of the individual from the state. Justice is the defence of a person's rights and well being. A man can claim to be fighting for those things while actually destroying them but his claims to be fighting for them those not make it so.
I could claim to be a Christian and get people to believe me. The fact that I am really an atheist doesn't make Christianity itself any less real as an ideal.