To be fair, with the level of competence of most Accenture staff, they're basically on par with most AI anyway.
I've experienced it often enough that upper management doesn't listen to their own employees. Ultimately, a consultant comes in, talks to employees, suggests the exact same thing to the same people, and they love it.
Having that branding on the ppt slides sells ideas. If you're a project manager or department lead and need to push through an idea but your boss won't let you? Try hiring a consultant who will sell it to your boss.