Bio of a space tyrant #4: Executive by Piers Anthony

Doomed to a madman’s hell
He was shaping his times as no one before him dared, mercilessly scourging an entire planet of crime and corruption wherever he found them—and destroying anyone who stood in his way. Absolute dictator of the United States of Jupiter, Hope Hubris was destined to become the most hated and feared man of an era, a tyrant charged with countless heinous acts and sexual cruelties. Yet justice remained his fiercest passion.

Now to insure his goals, Hope would assume an alternate identity and become a rebel—the brilliant leader in a revolution dedicated to his own overthrow. To fulfill his dreams he would sacrifice love…and plunge headlong into madness…