That's not irony, it's hypocrisy, and it's straight out of the Leftist Playbook. (How can you get to write for the Wall Street Journal and not know that?)
Stephen Moore does not work for the WSJ. He is, however, a great supply-sider (yippee!).
That said, I truly do see irony in the behavior of the leftists and the corporations that serve them. Companies like Ben and Jerry's act in their own best interest. They have concluded it is in their best interest to appeal to the lefties. Therefore, they adopt a "socially conscious" culture to appeal to the lefties. The "socially conscious" culture is adopted to further the corporate interests. No hypocrisy there. The leftists admire the "socially conscious" culture. No hyporisy there, either, but certainly irony because the culture they admire was created to further the corporation's own self-interest.