Can a Pedigree of Royal Ancestry Help Define Self?

If someone comes from a background of Royal Bloodlines, Dynasty or some sort of Pedigree can that help them define who they are? Well it certainly could help them define or perceive who they think they are. For instance if you are a Prince of some kind then perhaps it does define who you are to a large extent, but does it necessarily have to?

This subject recently came up in an online think tank due to a discussion on Royal Lineage. When one member asked me, since I like about a million other Americans and some 6 million residents of the UK have Royal Lines in their genealogy and ancestry. Here is the question;