The Sleeper Awakes by H. G. Wells

Summary
The Sleeper Awakes is a dystopian novel about a man who sleeps for two hundred years, waking up in a completely transformed London, where, because of compound interest, he has become the richest man in the world. He has been the famous Sleeper for centuries. A fanatic socialist, the main character awakes to see his nightmares realized, and the future revealed to him in all its horrors and malformities. The people adore him, and their masters the supervisors of his legacy who rule in his name do not want him breathing.