Isn't GDP also kind of subject to inflation, as it measures monetary value of things? If so, saying "it's OK, because GDP grew at the same rate" doesn't make much sense.
Well you could become an actor, and film makers could use your body to make movies they sell for profits. Or let's say photo model - then they could really move your body around and position it in poses to take photographs.
Really, I think your distinction of "capital" and "labor" is fake and completely useless. It's definitely useless, and unclear why you insist on it.