are you really trying to make this into some social cause célèbre? This isn't about friggin wealth inequality and middle class disappearing. It's about one individual making an obscenely silly mistake in a potential job opportunity, overvaluing his own time over others in the process, being so profoundly inept in basic job interview etiquette that you literally walked out without even bothering to ask the assistant what was going on. Because she was too busy?
Think about this for a second. Even if you were right, what does this all say about you?
1. You lack the assertiveness to speak up for yourself and ask an assistant what is going on? Probably poorly follows directions/poor in social situations.
2. You lack the ability to ask for instructions or learn how the interview process was going to work. Probably would have a tough time following basic guidelines for projects you'd be working on. Probably would lack the social graces to ask if he didn't know the answer.
3. You're incredibly insulting to others merely by the tone of your attitude. I mean that letter of yours is truly remarkable. You're basically telling the guy your time is worth more than his, in about as nails-on-chalkboard a way as possible. The guy was practically a saint how he responded back to you. More than even walking out of the interview, this letter suggests you're probably currently incapable of being apart of a functional work group.
4. You KEEP defending the wrong, trying to say you had some gut feeling or some shit, rather than saying "you know what, i'm young, I really needed this job, I fucked up. On the next job interview I'm going to ace this shit. Thanks NeoGAF for the advice!" I can't even list the number of ways this attitude alone would fuck you in the long term for any decent job.