This is Kaiba. He owns Kaiba Corp but is likely adopted.
I'm sorry, but this is a Christian site, we only pray to Lord Jesus
That's not an unusual thing in Japan, where a family adopts a male as an heir to a business or corporation. Since Kaiba still hasn't fucked anyone he would likely either have Kaiba Corp. to be passed to Mokuba or to some guy he adopts as an heir.