Yeah, I bet with all that crazy ninja healing shit you could heal some major diseases. Like as we saw recently...
- Treating projectile wounds big enough to have come from a howitzer (Neji)
- Treating treating liposuction malpractice victims (Chouji)
- Coma, trauma, or total catatonic brain shut down (Kakashi & Sasuke)
- The occasional sword in chest (Tsunade)

Plus, it just looks way cooler than our stupid hospital and medicines..

BEST OF ALL!!! NO FUCKING SIDE EFFECTS!!! HOORAY!