We have innocent until proven guilty as a guardrail against depriving people of their freedom. That doesn't even fully describe the entire US court system, which includes civil court (standard of proof is "preponderance of evidence"), and neither of these are the same as the softer standard of when we deprive a person of the privilege of their trusted station (which is what is happening to rms). In that court, "burden of association with tarnished reputation" is plenty. That's why concepts like "the appearance of impropriety is impropriety" exist.