If a man does not value knowledge, then he is not worth it.
If he ignores simple things like basic geography, the main event if today's world, and laughs about it instead of trying to change it, there is a big chance he will be ignorant of basic health knowledge too. Like MTSs and the importance of condoms.
Not everyone was blessed with an education, but everyone has the duty to learn and care. In today's world where information is accessible to all, there are no excuses.
Stay away from the ignorant.