Since the moment he announced his presidential candidacy, Barack Obama has waged a tireless, now four-year-long spread-the-wealth campaign against the more affluent.

He drew his mythical them/us line at $250,000 in annual income: If you went into the dark territory above that level, all sorts of promised punishments would kick in. At various times his administration has called for higher income taxes on this group, health-care surcharges, and removing the caps on income subject to Social Security payroll taxes — all to be added to higher state and local taxes. And, of course, higher capital-gains and inheritances taxes as well.

The president is not interested in nuances. He does not care that 40 percent of Americans pay no income taxes, or that the top 1 percent of earners pay 40 percent of aggregate collected income-tax revenue. Yet many of the people in these brackets were not always so rich and probably won’t be for long. Top incomes are transient. Millions of Americans strive to reach them for a few years to provide for retirement, or college expenses, in the expectation that they will fade quickly. A quarter of a million dollars in annual compensation is great money in North Dakota, rather less so in Manhattan or the Bay Area.

Furthermore, most of these upper-income earners are the owners of small businesses, which simply calibrate proposed taxes in terms of money not available to hire employees and buy equipment. In contrast, the president assumes that a hardware-store owner or a small manufacturer already concedes that he makes too much money. The idea seems to be that, in penance, he will cut his profit margin and, for the public good, will gladly pay more of what profits remain to an Ivy League technocracy that knows far better than he how to spend his ill-gotten revenue on others more deserving.

Obama, the supposedly savvy politician, oddly has little appreciation of the psychology of business. Millions of job creators still have only a vague idea of the net effect of Obama’s policies — except that they will probably mean less profits, and they are being enacted in a punitive spirit for past sins.

Obama’s policies are also seen as malleable and predicated on notions of social justice rather than on absolute adherence to the law — as in the reordering of the Chrysler creditors and the recent threats against health insurers who do not toe the federal line. Employers are human. Call them greedy, undeserving of their profits, and prone to party at Vegas — and in hurt they will sit on their money and wait such castigation out.

There also seems to be little appreciation of how one creates wealth — not surprising, since Obama and his economic architects are mostly salaried elitists who have spent much of their lives on various tenured government payrolls. Almost none were entrepreneurs who had built businesses from nothing.

The result is that Obama has little insight into the mentality of a businessperson, whose values and world view are antithetical to those of the salaried and tenured employee who accepts stability and a monthly check as he does the changing of the seasons. But to the self-employed, the world is an often hostile place in which a bad back, a chance fire, an unethical employee, a wrong guess, or a national recession can destroy years of hard work in a blink.