Frankenstein immediately labels him an abomination as soon as he comes to life, and he never gives him a chance to show that he’s anything but a monster.

He also hides out trying to help this family for a long time, and as soon as they see him, they assume he’s evil and terrible and run away as well.

The monster kills a few of Frankensteins family members, and stalks him for the rest of his days though, so he did kinda become the thing he was thought to be.