1. He became a military dictator.
After seizing power in a coup d'état in 1799, Napoleon quickly consolidated his power and became the de facto ruler of France. He created a new constitution that gave him almost unlimited authority and suppressed all opposition to his rule. This was a clear betrayal of the revolutionary principle that "sovereignty resides in the people."
2. He restored slavery in the French colonies.
In 1802, Napoleon reintroduced slavery in the French colonies, which had been abolished during the Revolution. This decision was made in order to appease the powerful plantation owners in the colonies and to boost the French economy. It was a betrayal of the revolutionary ideals of equality and liberty.
3. He made peace with the Catholic Church.
In 1801, Napoleon signed a concordat with Pope Pius VII, which re-established the Catholic Church in France. This was a major reversal of the revolutionary policy of secularization, which had sought to separate the church from the state. The Concordat gave the Catholic Church a privileged status in France and allowed it to play a role in education and politics.
4. He expanded French power through conquest.
Napoleon embarked on a series of military conquests that expanded France's territory and made him the master of much of Europe. These conquests were a betrayal of the revolutionary principle of self-determination for all peoples.
5. He crowned himself Emperor.
In 1804, Napoleon crowned himself Emperor of the French. This was a clear repudiation of the revolutionary principle of republicanism and a return to the old regime.
Napoleon's betrayal of the ideals of the French Revolution led to his eventual downfall. In 1814, he was forced to abdicate and was exiled to the island of Elba. He returned to France in 1815 but was defeated at the Battle of Waterloo. He was then exiled to the remote island of St. Helena, where he died in 1821.