was invented to spread the blame, so that no one person had to know they executed the person they were firing at. It allowed people to participate in an atrocious act without their morals getting in the way.
It’s often that starting projects people want “help”. Help is fine, but the projects also need a leader, someone to take charge. For projects, you’re not committing an atrocity, no need to hire a squad to spread the blame.
Internal to a company, when something goes wrong, people also want to have options to hide accountability.
Just like we don’t need atrocious acts, spreading the blame and accountability is becoming less and less useful. Better to establish the leader and the accountability and perform a “lessons learned” biopsy after a failure, then to hide where everything went wrong in the first place.