But "enough to not get fired" is not an answer to a question "why should I know anything?". To be honest, it's not clear if the rest of your post tries to answer the initial question of why you should know anything or the implied question of how much should I really know.
quacked|1 month ago
Here, though, is my answer: an excellent long-term goal for any band of humans is to create, inhabit, and enjoy the greatest civilization possible, and the more each individual human knows about their reality, the easier it is to do that.