Hey Alex,
I definitely agree with a lot of what you're saying, I understand that there is a lot of information and just too little time to get it all, or nearly all of it, and so finding just what you want or need now is a good thing.
But let's take that operating procedure example you gave. See, I have no intention of becoming a doctor either, but what if sometime in the future, you're in an emergency situation in which someone needs medical attention, and there is no professional around to help? For example, if a plane you're flying in crashes and you and another survive. You're fine, yet the other one needs help.
That would be a specific reason for getting all the information you CAN. Not necessarily all of the information in the world.
But that is just an example of information you may need in the future, not necessarily in the present.