@dalias @hal_pomeranz came here to say this. I remember coming in to work one day at a large payment processor (where I got my start in cybersecurity), and suddenly realizing that most of the people that worked there could just stop coming to the office and there would be zero impact.
Every department had one or two highly competent people that ended up doing 80-100% of the work that had value. It was literally a mirror of doing group projects in HS/Uni