I think Hamilton's two failed drug tests destroyed his career far more than Armstrong.

That's disingenuous at best. Lance was simultaneously dodging tests while siccing the authorities on any cyclist who dare challenge him on the road.

Lance may have trashed his reputation; but, Hamilton didn't detail Armstrong's doping until after he was serving his second, eight year suspension. (And Armstrong had nothing to do with Hamilton's claim that he was a tetragametic chimera, with two distinct DNA profiles.)