However, there's a problem. Talking to a Christian and a cannibal, you'll find that one holds to a principle of "love your neighbor" while the other has a principle of "eat your neighbor." If one person props up the god/idol of money another chooses the god/idol of poverty, there will be competing principles. Some systems of faith encourage people to worship themselves as gods. Principles will collide when selfishness is behind them.
The worshipers of Molech would sacrifice babies on a red-hot stone, picturing their idol/god eating their sacrificed babies as they screamed and died. Leviticus 18:10 clearly prohibited the Israelites, worshipers of Yahweh (the one and only true God), from worshiping Molech. Obviously it did matter which god they worshiped. (Paul says in 1 Corinthians 10, that behind every pagan sacrifice there is actually a demon.) Some people place their hope and trust in their political parties, making the party of their choice their god. Others worship the legal courts as god. And still others say there is no god and simply call whatever it is that they worship by a different name. (We all worship something; it's how humanity is created.)
With so many competing gods, all of which offering some differing "principles," we must ask which principle-giver (also called a moral-law giver) should we seek in order to know which principles are correct. This is the flaw of Glenn Beck's argument. All gods do not offer the same principles. All systems of faith are not the same.
So then the person making the statement about getting back to "correct principles" must offer a source for the "correct principles" so we know which principle-giver he is suggesting is correct. If he does not offer a source, then he is ultimately offering up himself up as the principle-giver and a god for others to worship. (This seems as if it might be the case for Beck.)
There is indeed a correct and ultimate moral-law giver. He is the triune God of the Christian Bible: the Father and Creator of all things, Jesus the God-man who gave himself on the cross so that those who turn to God and surrender their own ways to the way of Jesus may be redeemed, and the Holy Spirit who indwells and empowers believers. (I realize this may be controversial or confusing but I am happy to discuss it further or answer any questions.) There is indeed a correct principle; however, not all gods, religions, and churches agree on who the giver of the correct principle is or even the principles themselves. It does matter in which god or gods you believe. One is God, Creator of the universe and perfect moral-law giver, and all the others are backed by demons.
*Graphic is in the public domain.