Let's start with Pytor and his satin bond. In the novel Pytor is at the center of a conspiracy to overthrow the government, church, and families across Russia. All the ideas supported by Pytor are something that in the outside world Dostoevsky does not agree with. So when Dostoevsky makes Pytor Satin and represents all the ideas and philosophies he doesn't agree with, it casts Stavrogin into the white light and the main role in the novel because he supports all the things about Russia that Dostoevsky believes.