My statement that paying people excessively can make them less hungry is something that has been observed through experience. I'm not saying that this is always the case, just that it happens and is something to be aware of.
Sure, salary is a matter of supply and demand- which is why I'm advocating for more transparency so that all market participants can make decisions with more complete information of the market. But I'm saying that supply and demand SHOULD be dictated by value added.
I'm not necessarily saying that every company should pay within this range. Just that this is something to be aware of, and if there is significant deviation from these numbers, more thought should be put into the decision making process.