benevolent overlord

A benevolent overlord is a ruler or authority figure who wields great power but exercises it kindly or for the good of those beneath them.

The phrase is often ironic or humorous, applied to bosses, tech companies, or AI systems: I, for one, welcome our new robot overlords.

The combination acknowledges dominance while softening it with the suggestion of good intentions—though the irony usually implies skepticism about whether such power can truly be benign.