He certainly does. But he also still cares for his men. He's more ruthless sure, will sacrifice (and regret it) them if he has to, but he still cares about them.

Loves them really. And they love him in return.

Foolish but Tech wouldn't be the first to put his more minor injuries behind that of his General. Anakin didn't stand for that. Vader doesn't either. "Lead on." Tech knew the way and honestly? Vader wasn't steady enough to lead.