Earlier quoted context omitted.
My experience has been in tech, so I don't have information handy for other sectors.
Even in tech, the majority of executives don't have Ivy League degrees. Some of them might have MBAs from good schools, but many went to ordinary colleges. I work in tech and in my entire reporting line, there is exactly 1 Ivy league graduate. Tim Cook went to Auburn (MBA at Duke). Satya Nadella went to Manipal Institute of Technology (then UW-Milwaukee, and later an MBA at UChicago Booth).
Alphabet - Sundar Pichai (IIT, Stanford, Wharton)
Amazon - Jeff Bezos (Princeton)
Apple - Tim Cook (Auburn, Duke)
Microsoft - Satya Nadella (MIT Manipal, UW–Milwaukee, UChicago)
Meta - Mark Zuckerberg (Harvard - dropped out)
Tesla - Eleon Musk (UPenn / Wharton, Stanford - dropped out)
Nvidia - Jensen Huang (Oregon State, Stanford)
Broadcom - Hock E. Tan (MIT, Harvard)
Oracle - Safra A. Catz (UPenn)
Adobe - Shantanu Narayen (Osmania University, Bowling Green State University, University of California, Berkeley)
Cisco - Chuck Robbins (UNC)