Of course they shouldn't—it'd be illogical under the logic of capitalism. That's why I think the fundamental logic by which our institutions are organized and ordered is the problem.
Regardless of its sophistic, self-serving "state of nature" etiological myths, capitalism works in service of one thing: rendering any excess back to the owners of capital. Its teleology is sole and singular: profit. Consumers are means; goods and services are means; societies are means. The end is always the same: accruing maximum profits to ownership.
That's why—as opposed to, say, violent uprising and dictatorship of the proletariat—I support nearer-term solutions like sovereign wealth funds, which at least make the collective constituency one of the principal owners of wealth within a society. And they work—in nations that haven't prioritized pure profit, but have nonetheless not "failed". Such solutions aren't panacea, but they're a lot better at protecting and promoting the full social constituency than our current naked rapaciousness.