It's a tough proposition. The goal is for the elite to have the awareness, humility, and political courage to not let things get so bad. But that point is well before Dauphines lose their heads. It's when peasant children are asking for bread and not getting any. Maybe before even that. Don't reach that tipping point and you won't careen towards the other atrocities.
They're called "less lethal" for a reason. It's not a paintball that splatters on impact (and even then, those can also harm). Even a properly shot rubber bullet carries injury risk if you're too close. What's all that police training for?