My revenue wouldn't necessarily increase(unless maybe price reduction drives the sales enough), my costs due to Apple's commission will decrees and my development and legal costs will increase.
My landlord doesn't care. From his perspective, all that matters is that if I make enough money to pay the rent. He is not interested if my revenue after Apple's cut has increased.
If my net income decreases(because my costs increase more that the revenue after Apple's cut increase), I am screwed.