Now this i really agree with.
Have you even served NS? If you have, you would know that the S1 is more than just a paper pusher. The S1 has operational duties and is responsible for compiling, maintaining and planning the entire battalion ORBAT. This is an essential task because this information will let the S4 know how much transportation is needed, how much rations, etc. Moreover the S1 also has "human" responsibilities including arranging for the repatriation of dead bodies in the event of war, and liaising with the families of the fallen personnel. Moreover the S1 is also responsible for management and handling of all POWs captured. This is an important task.
In peacetime, the S1 is responsible for things like sending personnel for courses for upgrading, so as to ensure their career development. It is the S1 who sends people for airborne course, jungle confidence course and other vocational courses like QM, RQMS and CQMS course, ammo course, military driving course, logistics officer course, intelligence officer course, company tactics course (for OCs), CSM/RSM course, platoon sergeant course, etc etc. Without the S1, the entire unit will not have the appropriate level of training to perform their tasks.
I suppose this is all "paper work" to you, since you can't appreciate how all this contributes to the operational readiness of a unit.