But what is surprising is that some of the president’s biggest supporters have so publicly derided his policies, even at the risk of hurting their ability to influence the party in the future. Issues like the carry-interest tax on private equity or the Volcker Rule have become personal.

Why so personal? The prevailing view is that bankers, hedge fund mangers and traders supported the Obama candidacy because he appealed to their egos.

Mr. Obama was viewed as a member of the elite, an Ivy League graduate (Columbia, class of ’83, the same as Mr. Loeb), president of The Harvard Law Review  he was supposed to be just like them. President Obama was the “intelligent” choice, the same way they felt about themselves. They say that they knew he would seek higher taxes and tighter regulation; that was O.K. What they say they did not realize was that they were going to be painted as villains.

That Wall Street view of itself as a victim has prompted much of the private murmurings and the unfortunate  or worse  outburst from Stephen A. Schwarzman, who likened the administration’s plan for taxes on private equity to “when Hitler invaded Poland in 1939.” Mr. Schwarzman later apologized for the “inappropriate analogy.”

Now Mr. Loeb, who manages about $3.4 billion at his firm, Third Point Partners, has articulated in a more thoughtful way what a lot of others in finance and business are saying.

“We have given a great deal of thought about the impact that public policy has on individual companies, industries and the economy generally,” he said. Third Point has sold its investments in big banks as a result of “regulatory headwinds”; got rid of its stake in Wellpoint, which Mr. Loeb described as “a statistically cheap stock owned by several hedge funds, but which we saw as being overly exposed to unpredictable government regulation”; and taken a short position against for-profit education companies as a result of “the government’s increased willingness to use its regulatory muscle.”

Mr. Loeb’s views, irrespective of their validity, point to a bigger problem for the economy: If business leaders have a such a distrust of government, they won’t invest in the country. And perception is becoming reality.