People forget about bad luck too. Everyone gets the same amount of good luck in life. A few (ie Bill Gates) are at the right place at the right time and can go far, but nobody gets any more lucky breaks that anyone else, though a few breaks can go a lot farther than most of our breaks could.

For most people their luck is about equal to anyone else. which means you can't get a head because everyone else is moving as fast as you. However you are still moving forward.