My problem is that I don't recognize these imaginary battle lines drawn between "Profit", "Excess Profit", "Greed" and "Extreme Greed."
If I decide to sell a product or service, I will research the going price and offer my goods at that level. If they sell, my research was correct, which is good. If they don't sell, then I am asking too much. The profit is the profit. It is not good nor bad, it is simply "the profit." This has been at the very core of economic theory since Adam Smith first proposed it in the 1770's.
Those of you who have a problem with that are barking up the wrong tree.
Go talk to the person who is willing to pay more than you are and tell them: "Why are you buying that? It costs too much for me to consider. I think you should Stop It."
Or to that person who is willing to pay more than you think he should: "Hey, it's not my money but I think you shouldn't buy that. Your money would be better saved, or spent elsewhere, wouldn't you agree?"
And let me know how that works out.