By that I meant not "what is the definition of undue", but rather, why is the "offspring of powerful people having [extra] influence" undue? By what metric do y

By that I meant not "what is the definition of undue", but rather, why is the "offspring of powerful people having [extra] influence" undue? By what metric do you define the level of influence that is appropriate to any one person? And separately, how are we to determine whether the child of a powerful person doesn't have just the right amount of influence per that metric, and it's just a coincidence that their parent is powerful in their own right?