I have spent 25 years working in the advertising industry at some of the most highly regarded agencies in the world. Most of these have been dominated (in certain roles, at least) by the privately educated who gained their entry to the industry through having personal/family contacts in it, were subbed by rich parents while working in low-paid or free internships to gain experience and had that empty confidence private schools instil.
Perfectly capable graduates educated comprehensive schools didn't get much of a look in. However a few managed to break through, including myself.
Consequently, throughout my career I have actively rejected almost all privately educated graduates applying for entry level positions. This runs into hundreds of applicants. I have managed to do this without being called out. Sometimes I have rejected them even when they clearly would have done a better job than a comprehensive school educated alternative. These were corporate companies - it made no meaningful difference to me if they were mildly less successful as a consequence. The only exception was one graduate educated at Harrow and Bristol. I gave him the job as an experiment. He was average at best.
I did this in the name of social justice: re-distributing opportunities away from those with unearned privilege.
Have I been unreasonable? Has anyone else done the same?