What makes him a bad guy is that his grandson was an employee at Theranos and one of the first whistleblowers. Schultz not only did not believe him he disowned him for several years.
Only after the government pressed charges did Schultz acknowledge the grandson was right. But the grandson said he has never apologized for his treatment of him.
I don’t know. The way today’s younger people, especially Millenials Gen Z, turn on their elders and outright fabricate things, I’ll take that with a grain of salt.