You might be partially right, but McKinsey Senior Partners have a very long list of friends to call, many of them former McKinseys in positions of power. So while the shitty PowerPoint might seem as the product, the actual product might be trafficking influences and coordinating favors, getting insider information from a competitor, etc.

In this case in particular, if memory serves, they were advising the FDA in parallel, and leaking information to the Purdues. No brain-dead 24yo Harvard grad did that.

I would not give them any slack.