the bigger they are the harder they fall

The bigger they are the harder they fall is another way of saying that someone who is very prominent or superior and they fail, their failure will then be more dramatic. This is true of anyone who is considered prominent which may be the fact that they are a public figure or well known in another way, someone in the public eye often, or someone who is a president or CEO of a large corporation; the phrase is true of anyone who holds some type of leadership.