It seems to me that this bloke is taking each of these non replies as a personal slight against the honor of his family name. Is he taking applications for entry level stuff or A380 Captains? I understand his frustration having worked in a company with no HR Dept. Each manager was required to fill vacancies in their team and it was quite frustrating at times.
I am no CP. But I have been in leadership positions in various organisations for most of my working life and one thing I learnt about leadership very early on was to stress about the stuff that will get people hurt and just let the sh!t go through to the keeper. Because at the end of the day the person that does not return a call or email has failed the very first step in getting ANY job and thus has done you a favor by reducing the amount of time you have to spend interviewing.