Out of curiosity (since nobody every mentions this), do successful entrepreneurs every apply (and get in?). Obviously someone with a previous exit already has

Out of curiosity (since nobody every mentions this), do successful entrepreneurs every apply (and get in?). Obviously someone with a previous exit already has a network of investors, co-founder(s), etc., but could the exposure via YC (and Start Fund funding) warrant applying? Or is YC's mission geared towards new entrepreneurs?