Writing in the September, 20120, Commentary, Joseph Epstein (full text gated) notes, "... the comfortable assumption that political liberalism and moral goodness are one and the same." It is a clear and simple description of most of the people I encounter, in person or via their writing.
Dan Klein writes about "The Forsaken-Liberty Syndrome: Looking at Published Judgments to Say Whether Economists Reach a Conclusion." He contrasts the on-record conclusions by economists addressing key policy issues in their research on eleven specific issues with opinions on these eleven voiced by economists at-large. Klein describes these contrasts in terms of what is revealed about at-large economists' attitudes toward liberty. He asks: "Does the set [of eleven essays] serve as meta-evidence of a forsaken-liberty syndrome wherein liberalization finds more consistent support among on-record economists than at-large economists?"
I think that the Epstein description fits the at-large economists Klein describes. Attachment to vague notions of moral goodness comes easy when we are comfortable assuming that our liberty has been secured.