Yes, this whole thread begs the question of intent.

The OP's question seems to draw a conflict between agreement and acceptance, where there is none. If the parties agree then whatever profit (and anything else) in the price is acceptable. Agreement is implicit in the transaction.

Maybe this thread is really about an internal dissonance due to the common indoctrination: "profit is bad." If so, just take a slightly closer look at those who promote that philosophy and how they live. You'll soon conclude that their actual philosophy is "do as I say because I say so, or else" and you will be a lot happier about your earnings.