I will accept your challenge in the name of a friend who sternly believes that government is essential. I agree with Larken, but in the name of fairness, here goes:

As someone who is immuno-compromised (let's table the discussion regarding why that is), "evil corporations" could take advantage of my (perceived) need for life-saving drugs and force me into poverty, slavery or worse in order to pay an outlandish/onerous fee for something without which I may not live".