I'm not sure he's radioactive. He probably saw some grey-area stuff being done, everyone who's had a position of responsibility in such a large organization for any serious amount of time has.

He didn't quit over those. He quit over what seems to me to be flagrant disrespect for basic human rights.

I want to hope most companies who can make use of a person of Tim's skills - and those are few and far between - do not condone that kind of behavior and would appreciate him for it, not pass him over.