While reading earlier posts, I came across a comment of Colista's that answers my question about Kaushika and whether or not he may have become more compassionate after succumbing to the temptation of the nymph Menaka. The answer is clearly, no, he abandoned his very own daughter.
This is also an interesting theme for parents and teachers, and all of us who in a sense are parents to the new generations of young people who come after us. How do "we" as parents, elders, shame, judge or abandon people? What makes us turn our heads and walk away from things or issues we don't want to see about ourselves or others?
We don't hear about Kaushika again, so we don't know if he ever experiences regret or a change of heart that would make him a more compassionate human being. But we can look to see how we abandon and what we abandon and we could ask ourselves why do we abandon.