There is no one whom Allah puts in a position of authority, and he dies on the day he dies while cheating those under his authority except that Allah will forbid Paradise for him

The Prophet (may Allah's peace and blessings be upon him) informs that if Allah Almighty puts someone in authority over people, be it public authority, like the ruler, or a private one, like a man in his house and a woman in her house, and he neglects the right of those under his authority, cheats them, and acts insincerely towards them, ruining their worldly and religious rights, then he deserves this severe punishment.