Because you learn things when you talk to people, especially people who aren't like you. You learn what a goddamned polyglot race we are, we marvelous human beings. Some people are friendly. Some people are gruff. Some want security. Others want independence. Some want the government to run things. Some want to run things on their own. Some people need a helping hand. Some people need a kick in the pants. Some want to live and to die in the same small town. Some want to ramble the wide world. Some are content with little. Some cannot stop striving. Some want to life beside a true love, to worship a single god. Some crave a universe of loves, a universe of gods. I could go on and on. The differences between them, between me and you, between you and the woman sitting next to you at the hairdresser, wearing that dress you'd never wear in a million years, reading that book you wouldn't touch. The genius of politics, of people like Frank, is to link them all, understand them all, to represent them all. Not just the ones you agree with, the ones that think and act like you do.