LessieLove, I believe you too assign positive value to being rich and famous as if they were universal desires, which is egocentric. People we consider successful and model after or cite as examples, do not necessarily aim to be rich and/or famous. They attract what they focus on and sometimes for some of them their success/achievements become well known and celebrated.
LOA, if it is a law, is not something one chooses to "use" or not. It just functions indiscriminately, whether or not one is conscious of it. We are all natural at it but we are not happy with the results (our reality) when they are not what we consciously want and so some of us try to "work" it deliberately to attract what we think we want. It works out well, or so it seems to us, for some people who have what we want in abundance and we call them successful. They may or may not have used LOA deliberately and they may or may not be truly successful in that they actually get what they have really wanted.
BTW, Einstein was very spiritual. Read his quotes and you'll realize how much he valued imagination, intuition, etc. above "science". Like many great inventors, he received knowledge and information from the Universe during his daily naps.