Morals are not absolute. Trying to apply your own expectations to others has the ability to cause a lot of grief in life.
Having paid off about $35k in student loans 2.5 years after I graduated, I do feel sympathy. It's easy to take on loans when it's just numbers on a piece of paper and one may not have earned much money up until that point. I only realised the hindrance of debt after taking it on. It can be a very tough lesson for people to learn if they have taken on too much and do not have prior experience on which to base their decisions.