Already of course there are justifications being spun out as damage-control, declaring Foley an alcoholic, someone who didn't get along with his mother and, my personal favorite, that he's gay. This last is particularly pernicious as it only works by standing on the oft-repeated allegations by religious conservatives that homosexuality necessitates child molestation, an allegation that is not only completely wrong but sick.
Consider this: if one believes that reality exists as the outplay of a divine order where social heirarchy is mandated as representative of intelligent design and that this order is best shown by the increase in monetary and social gain (ala Calvin) being given to those who deserve it, then it is not a great leap in psychological construction that as power is given by the divine mandate and the divine is, by definition, morally right, then those who have been given power by the divine order are therefore in line with that same moral rightness.
Hence, you have Bush's inability to admit the possibility that he could have done anything wrong, Cheney's admission that knowing all that is known now, the Iraq situation would have been handled exactly the same way and people like Foley who see no harm in sexually enticing minors.
What is key here is that the adherence to a strict religious mentality is not needed, only the belief in the general parameters of a dualistic reality in which there is a divine order. This is why fascism, the rule of corporations, stands hand-in-hand with religious movements, for each justifies the other.