This too is a matter of perspective. A lot of pro-lifers fear Giuliani will end up pushing the party in a more pro-choice direction whether he intends to or not. They don’t have anything like the business wing of the GOP or even the Club for Growth to work effectively against that shift — they only have votes and volunteers they can threaten to withold.
Again, I don’t disagree with you about Huckabee on the merits of his economic-policy deviations or his economic rhetoric (though both “Club for Greed” and John McCain’s “agents of intolerance” were attacks on specific people and groups that were read as attacks on larger movements). But I think both economic and social conservatives should remember: It is easy to imagine “reasonable” compromises for other people when you don’t have to make them yourself.