Don't you think such people would be interested in investing on their own rather than part of YC as their partner? I don't know the revenue sharing approach tha

Don't you think such people would be interested in investing on their own rather than part of YC as their partner? I don't know the revenue sharing approach that YC uses with their partners but I don't believe that it is good enough to make successful entrepreneurs who built a company with >500 employees to join them. Someone with more insider knowledge can comment.