Organizing apes to do things is always more prestigious than a single ape doing the work. The organizer ape gets to claim that they did the work of the group.

Think about a plaque on a bridge. Who does it say built the bridge? The guy who never touched a shovel after the ground breaking ceremony.

You're mistaking the chief engineer/funder (likeliest candidate on that plaque) with the management of the construction company/contractors.