Ken played a role in bringing the UIUC CS program to Chicago which itself is a major feeder into Citadel. Citadel was one of the founding partners for City Scholars [0] along with DRW and Ocient.
Considering that push into Chicago started with Rauner, I’m not surprised.
It was suppose to also include a large campus in the Loop but that floundered for years and was eventually cancelled when UIUC decided to instead be a partner in the new quantum computing center on the south side.
It's the same way Penny (JB's sister and former Secretary of Commerce under Obama) and Ken donate oodles to Harvard because it is their undergrad alma mater (eg. Pritzker Commons, Pritzker Hall, Kenneth C. Griffin Graduate School of Arts and Sciences).
Also, Ken couldn't control Rauner given that Rauner was equally wealthy (he founded and chaired GTCR with Carl Thoma of Thoma Bravo fame).
Pritzker and Rauner is basically two sides of the same coin where both were essentially retired but in the same circles and decided to compete because of personal ambition.
Are we suppose to feel good that more bright students are working for deeply undemocratic and anti-human companies? I'd rather these people do something more productive than helping financiers make slightly more billions of dollars.
[0] - https://cityscholars.grainger.illinois.edu/