The way the system works graduates of the Ivy League and a handful of a few other colleges runs the country. I hate that but it is true. Its an oligarchy. I wish it weren’t so.
I’ve be around Ivy League grads & cow college grads all my professional life. I see no difference in job performance. Sometimes I think cow college grads are slightly better, they accept mistakes and learn from them. (Though that conclusion may be due to my personal bias! - I’m a cow college grad!)
You do go to the Ivys for the education you go for the contacts. Therefore in that regard I agree with you.