I doubt it's as calculated as that. Trump literally has no concept of truth, so he doesn't lie for strategic reasons. He says whatever makes him feel best about himself moment to moment.

This is textbook narcissism - confusing to those who expect some kind of object constancy who can't deliver it, but predictable from the syndrome.

He also intimidates and threatens more directly, but that doesn't get reported on the news.

Zuckerberg seems similarly fragile, but in a less overt way.

When you have insane levels of wealth your world revolves around your self-image and your desires, your peers are all at similar levels of dysfunction, no one else is likely to challenge you for obvious reasons, so you become socially unmoored and drift into Wealth Induced Psychosis.