They do not care about the rule of Law. From Krugman's piece in todays NYTimes, on comparing Bush to Reagan, there is this tidbit which is their overarching philosophy. The word "movement" refers to the conservative movement:

The movement’s apparatchik culture, in turn, explains much of its contempt for the rule of law. Someone who has risen through the ranks of a movement that prizes political loyalty above all isn’t likely to balk at, say, using bogus claims of voter fraud to disenfranchise Democrats, or suppressing potentially damaging investigations of Republicans.

They don't care about the rule of law, they don't care about government doing-good or even doing anything at all.

In an earlier paragraph Krugman's writes

In part this is because people whose ideology says that government is always the problem, never the solution, see no point in governing well. So they use political power to reward their friends, rather than find people who will actually do their jobs.

If expertise is irrelevant, who gets the jobs? No problem: the interlocking, lavishly financed institutions of movement conservatism, which range from K Street to Fox News, create a vast class of apparatchiks who can be counted on to be “loyal Bushies.”