The daughter surpassed the mother. No matter how Wilhelmina raised Niko, she still wanted the best for her family and was ready to sacrifice everything for her. And she, in turn, is ready to betray a loved one for the sake of money. Probably, it will go far. Yes, she didn't get enough maternal love, but that's no reason to do that. Moreover, in these episodes, Willie proved that she is able to come to the rescue in difficult times and support her daughter.
And I was afraid that Wilhelmina really believed her daughter.