I know this place has a general allergy to people in leadership / managerial roles vs IC engineer types. Q for the crowd- how in the weeds does a CTO need to b

I know this place has a general allergy to people in leadership / managerial roles vs IC engineer types. Q for the crowd- how in the weeds does a CTO need to be technically? There’s a lot on that list, what are the most important skills that only the CTO can do and no one else?