If he’s willing to trample all over people, exploit them, and have them die for his sake, then absolutely.
Billionaires don’t care about people. They don’t view others as human. To them workers are robots, a statistical means to an end. Who cares if someone dies in some factory/warehouse somewhere? There’ll be another to replace them before the end of the day.
A billionaire gladly takes the effort of others and claims it as their own. They go out of their way to do it.
That’s not to say that every evil person acting like this will automatically become a billionaire, but you need to be OK with doing these things in order to get there. A billion USD is such an insane sum you cannot legitimately accumulate that without hurting people in the process. Like there’s no logical way of actually earning that amount of money. That’s money you take.