I agree that skin colour by itself isn't so relevant in business, at least not since the 1960s in developed societies. The question is what values and skills are generally promoted in capitalist societies. If we assume those societies are pragmatic, so they just want someone to get the job done, as you say, the question is what the jobs tend to be. Of course, the overriding job is to earn a profit. And that value has indeed fostered cut-throat, Machiavellian behaviour. Just look at Trumpism or the frauds on Wall Street: seek short-term profit at the expense of long-term planning or the promotion of social welfare, skirt the law, and jump ship when it sinks.
Elsewhere, I write about the link between laissez-faire economics and the promotion of psychopathic values (amoral individualism).
