Jeez, the guy's guilty, there's a mountain of cirumstantial evidence, tons of witness testimony and science that indicates he either doped or he was able to break the laws of physics.
That doesn't mean his achievements weren't staggering or that he wasn't the best rider of his time. The guy is the very epitomy of 'whatever it takes' dedication. At the time what it took was everything you'd expect plus dope, so that's what he did. Nothing that happens is really going to tarnish his reputation on the bike as the assumption will always be he was only beating other doped cyclists, so still a level playing field. Yeah I'm sure there were a few 'clean' cyclists that underachieved because of that, but they fall into the realms of ifs, buts and maybes, you can't go back and change things.
It's the damage he's done, and continues to do, off the bike that rankles. Whether you're a general cycling fan, a Lance fan or just have a casual interest, if he'd just fessed up and drawn a line I doubt his long term rep would have suffered too badly. Once things died down people would still remember his epic feats on a bike.