Luck is where opportunity meets preparation
John Gapper makes a good point: management consultants in general, and McKinsey consultants in particular, have made their entire business out of exploiting the moral grey zone surrounding confidential information.
The reason you hire McKinsey is that its consultants have seen strategic business issues like yours before, and therefore might have developed good insights into how to approach them. But the reason they’re familiar with those issues is that they’ve been given highly confidential information about your competitors. So when you hire McKinsey you’re essentially trying to acquire, for a very high hourly fee, the kind of corporate intelligence that can only be built up through long exposure to highly-sensitive commercial information. (…)
In this sense, a management consultant is a bit like an art dealer, or anybody else who traffics in valuable information asymmetries. The consultant knows more than the client, when it comes to strategic issues within the industry in question. If the client wants access to that knowledge, he has to open his own kimono to get it, thereby putting the consultant at yet more of an information advantage.
