"If the Ten Commandments constitute our greatest source of morality, why is it there no commandments saying do not rape, do not torture, or do not commit incest, yet there are commandments against swearing, working on Sunday, and making statues to other gods?"
Bill Maher is being deceptive. "Thou shalt not commit adultery" is a commandment. It was later explained by Jesus as such "If you even LOOK at a woman who is not your wife, you have commited adultery in your heart". So, rape and incest are certainly covered, as marriage is consent and you cannot marry a close relevative. It does not matter what the modern english definition of adultery is. The commandment itself means what Jesus said it means.
Luther insists that "Thou shalt not murder" covers even harming your fellow man in the slightest way. Even if it did not, Torture would be covered by "Thou shalt not steal". Torture steals a person's dignity. Ergo, it's covered.
You might argue that a commandment against theft does not deal with intangible assets, however, that would be putting an arbitary limit on an infinite God.
Now, the astute Orwell reader might compare this to thoughtcrime. However, Jesus himself in word and deed advocated separation of church and state, to wit, saying "My Kingdom is not of this world" and "Give to caesar what is caesar's". Every sort of bad behavior you could think of is covered by the ten commandments, and the ten commandments are by design impossible for anyone but Jesus to keep.
Bill Maher does, in his deception, raises the point that many so-called Christians like Bush are ignorant of God's law. Indeed, some "defenders" of the ten commandments could not recite them.
Sadly, that point will probably go over many people's heads.