When creating a story there are always back stories which have to be developed but don’t get to be placed front and center. But think about the other love story — Felipe (the black sheep of his wealthy family) fought for years to protect what was rightfully his nephew’s. He WON against Goliath. He did it for love — love for his deceased sister and her quiet lonely son.
As a reward he does get undying loyalty from Elan, who keeps his uncle as a trusted friend and business partner for all this life.