True wealth is always an emotional state. So is poverty.
Bill Gates is a very poor man.
And I would comment that money doesn’t make people bad, but that bad people are often driven in the direction of wealth.
I say bad: really, the world is simply filled with people unable to process traumas that they often can’t remember. And the worst trauma is not being loved. If you are never loved, then you don’t miss it. But you can’t be a complete human being without love.
Based on his behavior, I doubt very much that Bill Gates has ever felt loved, and I don’t think he knows it, not on a deep level.