Hmmm might be wrong but believe education is transmission of knowledge, but fiine, you are the native speaker after all
Yes, but it can also be a coping mechanism, there is only so much people are willing/capable to suffer, not to mention they might consider that they need to put up a strong front to encourage the people around/ones suffering, even if they would cry when alone.
A level lof detachment is quite important in many cases, i only find lack of empathy problematic when its "systemic" in a society, such as when someone is beaten up in a street and no one gives a fuck/helps. or people being able to see people in suffering and blame them for it/not lend a hand... then again a lot of people took advantage of such situations so its not very surprising people are afraid of it being a scam/trap.
I understand that such attitudes seem to bother you and thus the harsh words towards such people, but in many cases i believe they have their own reasons, some people can remain empathetic and caring, others cant. Maybe if we drove our society from competitive to cooperative we could achieve better results?
I myself have been put in dangerous situations when trying to help others, never stopped me from doing it again... but there has been times i had to turn a blind eye to it as well.