A frequently used example to describe what an inequity is similar to "an inequity between characters and their environment" -- the desire for a new car and a car. I use it during my Weekend Workshops and when I used to teach story at CalArts.
In short -- the desire for a new car is not a problem. A car is not a problem. The space between the two is not a problem. It is seen by a human mind as an inequity. When you have an inequity you have two choices: resolve the inequity or justify it away.
You can resolve the inequity in different ways -- one, you could lose your desire for the new car. Get rid of the desire, no more separateness between things, no more inequity. Everything returns to Zen. OR you can get the car. Get the car, you no longer have a desire for it, no inequity, everything returns to normal.
But what if you don't have the means for a car AND you can't get rid of the desire? That's when you start the justification process.
So what you first do is look to where you're going to focus your attention. Let's say you focus on the car. If you do that, then you "lock" the desire for the car away - you're no longer going to consider losing that desire as an option. You're attention is focused on the car.
With the desire locked away the car itself now becomes a PROBLEM. You don't have a car. That problem was completely created in your head. This is where the Justification process begins and where Dramatica fits in.
The model isn't showing you the inequity, the model is showing you the mind's problem-solving process. With the car as a problem, you automatically create a solution -- more Cash. Now you have a Problem (the car) and a Solution (more cash). But what if you don't have that much cash? Well then, you make not having Cash a Problem by hiding the original problem of not having a car. You've justified or hidden away that Problem and created a new one. Now you're looking for a Solution for a Solution.
Eventually you'll get to the 4th level of Justification (fully justified) where you are looking for a Solution for a Solution for a Solution and this is where most stories begin. You've TOTALLY forgotten your original motivation for why you're even doing the things you do. Sounds like a justified Main Character, right?
The story process (or storyform) depicts the process of tearing those justifications down (Changed Resolve). I'm pretty sure Steadfast characters depict the process of building justifications up.
So the storyform isn't about an inequity but rather the mind's process of problem-solving or justifying a problem that came from an inequity between things.