It is often quite incorrectly believed that evil is a product of stupidity and that the answer to stupidity is education, which, generally speaking, it is not. In fact, in a fallen world, the relationship between intelligence and cruelty is actually the inverse of what we might expect: with increased intelligence comes increased capacity for creativity in evil-doing, and for taking senseless pleasure in the injury of others.
If you doubt this, try googling “nasty dolphins”.