Yes, it is true that the Treaty of Versailles was violated by Hitler's military build-up, since the treaty expressly prohibited the German military from reaching this size. Many European powers "turned their heads" however, since they didn't want to engage in another conflict.
Answer:
one of the unlimited powers is presidential pardons
Most disturbing and horrific would probably be the way that workers could be mutilated by the machines or by human error and nobody would care about that. They would have to keep working without fingers or hands because not working would mean the end of their families. The injuries sometimes didn't have to be mutilation but were still severe.
The feature is the rule of law. Unlike people, legislature cannot be affected by passion and if law rules then everyone is equal in the eyes of law. If a man rules and has absolute power, they can be affected by various things that might make them abuse their power, and law cannot abuse power on its own.