I think what they mean is that, someone knowing what is happening in the world, and being able to discuss those things, could be seen as them being part of a certain level/caste in society. Being able to discuss issues, being seen as intelligent and knowledgeable.

Ie, you will be looked down on in some circles if you are not aware of what is going on. Knowing what someone else doesn't know is a way of being better than them. Or signalling that you are better than them.

It's not usually as overt as this, but it's there.