What evidence is there the main determinant of whether you are in the top 1% is whether your father was? And that other determinants like education are relative

What evidence is there the main determinant of whether you are in the top 1% is whether your father was? And that other determinants like education are relatively insignificant? Beyond this, maybe the focus should be less about getting in the top 1% and more about something attainable by more than one in a hundred people. A life in the broad middle class is much better predicted by education.