You are. You said
> The most common trade is when a person can trade their time and their body’s energy.
They are not "trading their body's energy". They a performing a task which requires innumerable inputs, among them energy, vitamins, oxygen, correct ambient temperatures, training, tools, etc. Energy has a preferred fundamental status in physics but it does not have such a status in this economic transaction. There is no reason to emphasize over any of the other inputs. You are bringing it up because of the aura attached to it in in physics.