MC's family doesn't care about him, he has never seen anyone close to Lynette in his life. Why would they worry about him? Look at it from the perspective of these elite assholes!:
Some poor carpenter fooled their daughter and took her away, some dude from the bottom of society; and then they made a child who is the cause of their daughter's death - Lynette died during childbirth. These are events from their worldview.
He only got that $5,000 of Lynette's property because it was state law. Plus, remembering Lynette diary, her words about her father, I picked up unpleasant vibes. Tyrant vibes.