I do think that there should be others who have some of the basic admin privileges that president get's, such as ex-presidents and vice-president, but alas the situation is as it is
I agree with you, but the implementation of things is in the hands of the administrator and there is a lot that must be done, in many forums the role of the administrator is access to private data, technical updates and solutions to deep problems.
Most of the organizational role is done by global mods.
The Senate votes on the updates which are implemented by global mods.
There is also a section for promotion and budget which is done by the president or the deputy.
Therefore, the administrator's interaction with problems is limited so that a simple update such as the news section is not among his duties.
Or in some forums there are two admins with different permissions (requires a lot of trust)