William Blair Analyst & Associate Positions interview questions

Met the recruiters at the Northwestern University Job Fair. Several were available to interview students and alumni on the spot. One recruiter waved me over to meet with him/her. Decided right away without even asking me any questions that I would not be qualified for ANY positions with William Blair. He said that if I applied for an associate position, I would need to have an MBA. If I applied for an analyst position, I was overqualified. My question to him then was, what would it take for me to apply for ANY position with William Blair? It's funny he mentions this because I already HAVE a Master's Degree from Northwestern University, along with many years of work experience in the financial world. Also, many of my former co-workers throughout my career ended up working at William Blair - and NONE of them have Master's Degrees or any lengthy work experience. Even my former manager's wife worked here as an associate - after she got her MBA, she left. Is he just making up excuses not to hire me? Sure sounds like it. I don't think that this company should have been here at the job fair in the first place to recruit students and/or alumni. It is quite insulting to hear his comments. I don't think I would ever want to apply myself or recommend anyone to apply to this company. What a shame.