Attaining a good education is often touted as the key to moving up in the world -- both economically and even socially. This theory is especially pressed upon those who may come from an under-privileged background. The old adage is: work hard, get good grades and you'll be able get into a good college. And going to a good college means that you can get a lucrative job once you graduate, if you do well and work hard.

But statistics show another story.

Check out this infographic from OnlineSchools.com that shows how class, family income and legacy status can really impact one's chances of getting into an elite American university, which is often a gateway into good-paying jobs and career opportunities.