What you really want to do is to create a whole new channel of service, product or innovation. It makes so much sense when you think about it.
One of the quotes from the book that Mr Thiel likes to use in job interviews is..."What important truth do very few people agree with you on?" This question forces you to take a stand with your answer which may be immensely unpopular, but is very telling about what type of person you are. Most people are too scared to reveal themselves in a job interview, but here is one of America's greatest innovators telling you that is precisely what you should do. "I want to help people" or "I want to make a difference" will never get you a job.
The point is that if you are seeking a job, then take a stand. If you are starting a business, then do not copy someone else.