Yes, he really does live in his house. (Not everybody is the fool that pretends bigger is better.)
Is that dangerous? No. Why would it be? He’s a nice, honest, hard-working guy.
Fortunately, being rich isn’t a popular reason to be hated. For those who feel contempt, taxation is the weapon of choice. Why kill the guy when you can take his money this year and the rest?
Oh. Wait. You’re thinking kidnap/ransom? You need to shut your TV off, step outside, and smell the flowers. The world’s not that bad.