I'm okay with Ballmer being friends with Gates and getting a company.
I'm kinda okay with Ballmer being inept and driving it in circles for a decade. He's practically a founder and he was personally chosen by the founder. He should feel guilty that a lot of people's careers were screwed up by his poor leadership, but without Gates in Microsoft, Apple and Google flourished.
Sometimes the personal relationships and unfairness at the top is the stuff which leads to a company's wild success. Apple and Facebook are good examples.
But to teach two courses?
It's a discredit to the schools.
He should be pulled out in a cage as a specimin of "real business leaders" and studied from a distance.
Microsoft's janitor's certainly have more qualifications. They've had to at least interview and apply for a job in their life.