That is the idea and that is not what happens. Management consulting companies like this are the literal analog of pharmacy companies not wanting to cure anything because then you lose business. If you spend more than a few days working with them you realize that they promote people who find and make long-term revenue streams, not anyone who solves or actually helps anything.

The actual people who do work are generally clueless recent grads on their first job, are trained to produce just enough to pass what is being sold, and they leave (or move up to selling) when they understand the game they have been playing.