If you're just business unfriendly at your core, that's fine. But you're arguing as if businesses don't practice in this way every day. You don't have to understand it. It doesn't have to make sense to you. It's not your decision to make.
In my business, I can make all sorts of deals and side deals or raise the price or lower the price. I can quote one person one fee, and turn around a quote a different fee to another person.
If you have a problem with that, you're not really arguing about any legal activity. You're arguing about your general preference as to how businesses should run, not how they do run.