As Hayek proved the information in free markets is encoded by prices, so the value is up to the consenting parties. There is no "good" or "bad" or "improper" profit. If there is competition and willing parties that's where the profit will be. It will go down to something more or less sustainable for the market participants that are willing to work for that profit.
Sure, there may be a price a customer is willing to pay, but how does the business owner make a profit? Aren't there other people being paid too? If they are paid less, doesn't that sound more like a negotiating position than mere "information" signals?