1) Have no god before / but Yahweh.
People seem today to be prepared to have any god BUT Yahweh. Whether their god is science, atheism, materialism, nihilistic philosophy, the earth-mother / paganism, new-age metaphysics, oriental energetics or whatever...
2) Make no idols.
People have all kinds of idols in our celebrity-obsessed culture and most of them are not even good role models. Aside from that, people are drawn to new age mix 'n' match oriental icons, idols and Buddhas (in spite of the fact that there were no gods in traditional Chinese Daoist philosophy and Buddha said no one should make idols of him.)
3) Do not misuse the Lord's name.
How often do we hear people shouting "Oh... My... God!" and "Jesus Christ!" often interspersed with a barrage of sexual profanities?
4) Honour the Sabbath day and keep it Holy.
In our 24/7 shopping culture, the Sabbath no longer means anything to most people, except that it is seen as a great day to go shopping. Working on a Sunday can even be seen as virtuous.
5) Honour your father and mother.
In our post-Freud culture, how often do you hear the phrase "I blame the parents" ? And how many people wrongly blame their parents for their own failings? How many adolescents tell their parents that they hate them?
(Please note - I'm not talking about people who may have good reason to feel some bitterness towards their parents here, perhaps because of genuine abuse, but about all the people who don't have good reason - people who just feel angry because they don't want to be bound by their parent's advice or ground-rules.
It should be remembered too that this rule is part of a blueprint that everyone should be obeying. In such a society, your parents should be behaving more honourably too and if for any reason they weren't - if their actions were in contradiction to the other 9 commandments - you would be able to over-rule them on the basis that obedience to God's Law gets priority.)
6) Do not murder.
I suppose no society has ever even come close to achieving this one. But now we do have a particularly ruthless form of murder taking place in the case of abortion, human embryo experimentation and the creation of hybrid human-animal embryos - all fully forms of life that are considered disposable if they are inconvenient (to recreational sex culture) or if they have outlived their usefulness.
Jesus told us that we should not even get angry or hold grudges - we shouldn't even think of killing or harming others. But a vast "entertainment" industry exists to peddle us an endless sea of ultra-violent (and sexual) computer games and a constant diet of ultra violent (and sexual) films and TV programmes.
7) Do not commit adultery.
It goes without saying that marriage, monogamy and fidelity are given little credence these days. Commitment has largely been replaced with pre-nuptial agreements, serial relationships and broken families.
8) Do not steal.
Aside from the fact that everything we own is stolen (under capitalism), people freely pirate films, music and software (on the grounds that everybody does it!). People also avoid paying taxes by buying smuggled and counterfeit goods.
Insurance companies also make huge profits from the material insecurity and paranoia that results from our high-crime culture.
9) Do not lie.
This is another idea that has largely been cast into the wind. Today people say "you've got to tell lies sometimes"; "everyone lies", and the moral relativist biggy "well who's to say what's true anyway?" As many people no longer recognise that there is even such a thing as truth, the concept of being truthful is quite endangered.
10) Do not covet.
This is probably the creme de la creme of reversed commandments. We live in a consumer-based culture that RUNS on coveting (though it is usually called "aspiration"). We are encouraged to covet everybody else's everything and strive to have them for ourselves. This could not be a more direct reversal of "you shall not set your heart on your neighbours house. You shall not set your heart on your neighbour's spouse, or servant, man or woman, or ox, or donkey, or any of your neighbour's possessions." The whole society revolves around our not being satisfied with our lot and encouraging us to yearn for the stuff other people have.
As society is competitive as well, we can even have stuff at each others' expense - again, consumer-capitalism depends on it. And because we live in a secular democracy, we are free to change whatever laws we like in order to better serve our temporal desires.
As Father Mitch Pacwa pointed out recently in an EWTN homily - by failing to observe the Ten Commandments, we give up our free will, perpetrators included. We are not free to walk down the street without fear of being robbed, killed or accosted.
If we all simply observed the Ten Commandments, we'd have no need to be afraid any more and we would then truly be free.