The difference is, Lance was a hero, those guys no one ever cared about one way or the other. A pretty large segment of public is generally pretty willing to forgive their heroes if they give them a reason to, and I've seen plenty of people out there ready to give him a pass as a person on this because of all the good he did with the platform his cheating got them. He's never going to be what he was, but I think there's room to repair his image - especially in regard his charitable work.
More practically, he was given a lifetime ban from anything USADA administers, and that includes any triathalon and marathon that USA Track and Field is involved with. If he knows where other bodies are buried and can help their investigation, there's precedent for having that reduced or eliminated altogether.