If you are oblivious to your surroundings and environment, then you won't be doing much to try and better you situation. The proles are living the only life they know how to and not thinking that there's anything better for them. Until they decided to one day rebel, which won't happen, they will never know what they are missing. You can compare the Proles to slaves, they were born into that life and only a few try and run away while the majority of them do as there told out of fear and ignorance.