It's not supposed to be. Your salary is a better indication of that. RPE is just a heuristic to compare companies in the same industry to see if one is more bloated or not - the thinking is if company A can do this with lower head count, company B with lower RPE may be more inefficient. It's not perfect, just one out of many things you would analyze. You would look at other indicators to give you more (or less) confidence.