A: Generators are powerful and dangerous, yet, oddly, easily harmed. A wrench in the wrong place, a bucket of water tossed carelessly, the wrong switch flipped, and the generator could just stop working, sending the whole town into blackness and panic and chaos and looting and decades old grudges solved by murder.
Trust me, I spend a lot of time thinking about such a scenario. Not just thinking, but drawing and writing and creating dioramas. I have lots of down time at my job guarding the reactor at the power plant. I put a lot of work into those dioramas. And it pays off. They get quite a reaction. No one expects to see a vivid depiction of their house burnt to the ground. No one expects their house to be the one burnt in the madness. But damage to the generator would affect everyone, even vice presidents of the company who live 14 miles away.
To answer your question, a generator is the ultimate negotiating tool at contract time. But don't forget the dioramas. Nothing inspires a raise like terror at 1/8 scale.