Groups are slower and less consistent in decision making than individuals, simple as that.

I believe there would be a single polymath who has skills in multiple fields, such as Oppenheimer who was great at science and administration who can lead a group for successful execution. For Apollo moon mission, it was the US president vision at the foremost. Even for TSMC and other companies such people exist. I don't want to say that entire credit goes to an individual but leaders with multiple skills are necessary.