Is there a part of a product price which is not represented by energy or the efficient use thereof?
Of course there is.
I've never claimed that the price of something represents energy. The price of something is just a notification on a billboard, or in an advertisement, or on a website, or on a tag in a shop.
It's the money paid for the product that represents energy. If an idiot spends a million dollars on a wrist watch, only a very small proportion of that money is needed to cover the production and marketing costs, and provide a reasonable profit. The vast majority of the money is effectively a donation towards a wealthy lifestyle of the owner of the business.
However, if the owner of the business, who receives a million dollars for a watch, uses the main portion of that money more sensibly than the person who bought the watch, then that's fine.
The purchaser of the watch feeds his ego, and the recipient of the money paid for the watch, which might be 100 times the production cost of the watch, feeds starving people in undeveloped countries, or restores degraded land through reforestation, or spends the money on some other useful project of benefit to mankind.
If that happens, I have no criticism. Got it?